leprosy

/ˈlɛpɹəsi/

//ˈlɛpɹəsi// noun

"leprosy" is a 7-letter English headword indexed on PlainSpell.

The verdict

“leprosy” has 11 generated spelling variants in the English index at frequency #28,975. The variants make it a useful spelling check.

#28,975
frequency rank, English
2,297
“L” headwords
11
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An infectious disease caused by the bacterium Mycobacterium leprae, gradually producing nerve damage and patches of skin necrosis and historically handled by permanently quarantining its sufferers.

Corpus desk

Index EN-leprosy · leprosy · English

leprosy · rank #28,975 · 11 variants · 1 confusable

  • FREQ-MID #28,975
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 11 variants
  • BOOK-MID 2,297
  • PHOTO-FINISH lisp

Nearest frequency peer: lisp (+2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “leprosy”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “leprosy” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

leprosy vs Leroy
57% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for leprosy
PropertyValue
Headwordleprosy
LanguageEnglish
Part of speechNoun
IPA/ˈlɛpɹəsi/
Letters7
Frequency rank#28,975
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “leprosy”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).leprosylands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “lisp” (#28,977), “Lawton” (#28,972), “locust” (#28,979). Among 2,297 “L” headwords, “leprosy” is #28,975. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around leprosy (IPA /ˈlɛpɹəsi/), anoun. Corpus frequency is #28,975 among 2,297 “L” headwords. Wiktionary lists 6 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for leprosy, with forms such as "elprosy", "leporsy", and "lepprosy". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "Leroy", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Norman leprosie, from Middle French leprosie (“leprosy & similar skin diseases”), probably from leprous (“leprous”) + -ie (“-y”) but possibly from Medieval Latin leprōsia (leprōsus + -ia) although this only historically attested in reference to leprosa… The correct English form is leprosy, spelled L-E-P-R-O-S-Y.

Definition

  1. 1
    An infectious disease caused by the bacterium Mycobacterium leprae, gradually producing nerve damage and patches of skin necrosis and historically handled by permanently quarantining its sufferers.
  2. 2
    Similar contagious skin diseases causing light patches of scaly skin, particularly psoriasis, syphilis, vitiligo, scabies, and (biblical) the various diseases considered "tzaraath" in the Old Testament.
  3. 3
    Anything considered similarly permanent, harmful, and communicable, particularly when such a thing should be handled by avoidance or isolation of its victims.
  4. 4
    A contagious disease causing similar effects in animals, particularly
  5. 5
    A contagious disease causing similar effects in animals, particularly
  6. 6
    Synonym of leprosarium: a place for the housing of lepers in isolation from the rest of society.

Recorded use

Wiktionary examples

These source excerpts show how leprosy appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Then is it surely a leprosy
  2. The great London doctors knew nothing about leprosy and cared less.

Etymology

From Norman leprosie, from Middle French leprosie (“leprosy & similar skin diseases”), probably from leprous (“leprous”) + -ie (“-y”) but possibly from Medieval Latin leprōsia (leprōsus + -ia) although this only historically attested in reference to leprosariums. The shift of sense from psoriasis to Hansen's disease occurred in large part from the use of λέπρα (lépra) to translate Hebrew צרעת (“tzaraath”) in the Septuagint and its subsequent use in the New Testament and Late Latin.

Synonyms

HansensiasisHansen's diseaseleprameselmeasleselephantiasisGreek elephantiasisGreek leprosyGreek lepraleprositybastard scurvyleper

This word in other languages

Common misspellings

Also misspelled as:

  • elprosy
  • leporsy
  • lepprosy
  • leprossy
  • leprosyy
  • leproys
  • leprrosy
  • leprsoy
  • lerposy
  • lleprosy
  • lperosy

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of leprosy - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

elprosy2leporsy2lepprosy1leprossy1leprosyy1leproys2leprrosy1leprsoy2
Edit distance from "leprosy"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "leprosy"?
"leprosy" is spelled L-E-P-R-O-S-Y. The IPA pronunciation is /ˈlɛpɹəsi/.
What does "leprosy" mean?
As a noun, "leprosy" means: An infectious disease caused by the bacterium Mycobacterium leprae, gradually producing nerve damage and patches of skin necrosis and historically handled by permanently quarantining its sufferers.
What words are commonly confused with "leprosy"?
"leprosy" is commonly confused with "Leroy". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "leprosy"?
The IPA (International Phonetic Alphabet) transcription for "leprosy" is /ˈlɛpɹəsi/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "leprosy"?
From Norman leprosie, from Middle French leprosie (“leprosy & similar skin diseases”), probably from leprous (“leprous”) + -ie (“-y”) but possibly from Medieval Latin leprōsia (leprōsus + -ia) although this only historically attested in reference ... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "leprosy", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list