prosthesis

/pɹɒsˈθiːsɪs/

//pɹɒsˈθiːsɪs// noun

"prosthesis" is a 10-letter English headword indexed on PlainSpell.

The verdict

“prosthesis” has 16 generated spelling variants in the English index at frequency #37,173. The variants make it a useful spelling check.

#37,173
frequency rank, English
4,417
“P” headwords
16
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An artificial replacement for a body part, either internal or external.

Corpus desk

Index EN-prosthesis · prosthesis · English

prosthesis · rank #37,173 · 16 variants · 2 confusables

  • FREQ-MID #37,173
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 16 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH prong

Nearest frequency peer: prong (-1 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 “prosthesis”

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

corpus weight

What this shows “prosthesis” 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).

prosthesis vs prosthetic
80% similar
prosthesis vs prosthetics
82% similar

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

Key facts for prosthesis
PropertyValue
Headwordprosthesis
LanguageEnglish
Part of speechNoun
IPA/pɹɒsˈθiːsɪs/
Letters10
Frequency rank#37,173
Misspellings tracked16
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “prosthesis”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).prosthesislands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “prong” (#37,172), “prosthetics” (#37,174), “prolonging” (#37,171). Among 4,417 “P” headwords, “prosthesis” is #37,173. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around prosthesis (IPA /pɹɒsˈθiːsɪs/), anoun. Corpus frequency is #37,173 among 4,417 “P” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for prosthesis, with forms such as "porsthesis", "pprosthesis", and "proshtesis". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 2 confusable-pair relationships, "prosthetic", "prosthetics", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Via Latin, from Ancient Greek πρόσθεσις (prósthesis, “addition”), from προστίθημι (prostíthēmi, “I add”), from πρός (prós, “towards”) + τίθημι (títhēmi, “I place”), from Proto-Indo-European *próti, *préti + *dʰédʰeh₁ti (“to be putting, to be placing”). By s… The correct English form is prosthesis, spelled P-R-O-S-T-H-E-S-I-S.

Definition

  1. 1
    An artificial replacement for a body part, either internal or external.
  2. 2
    Prothesis.

Recorded use

Wiktionary example

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

  1. Gong believes the fiber-reinforced hydrogel could be used to create biomaterials, such as artificial organs and prostheses, able to endure everyday wear-and-tear.

Etymology

Via Latin, from Ancient Greek πρόσθεσις (prósthesis, “addition”), from προστίθημι (prostíthēmi, “I add”), from πρός (prós, “towards”) + τίθημι (títhēmi, “I place”), from Proto-Indo-European *próti, *préti + *dʰédʰeh₁ti (“to be putting, to be placing”). By surface analysis, prosth- + -esis.

This word in other languages

Common misspellings

Also misspelled as:

  • porsthesis
  • pprosthesis
  • proshtesis
  • prossthesis
  • prostehsis
  • prostheiss
  • prosthesiss
  • prosthessi
  • prosthessis
  • prosthhesis
  • prosthseis
  • prostthesis
  • protshesis
  • prrosthesis
  • prsothesis
  • rposthesis

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of prosthesis - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

porsthesis2pprosthesis1proshtesis2prossthesis1prostehsis2prostheiss2prosthesiss1prosthessi2
Edit distance from "prosthesis"

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 "prosthesis"?
"prosthesis" is spelled P-R-O-S-T-H-E-S-I-S. The IPA pronunciation is /pɹɒsˈθiːsɪs/.
What does "prosthesis" mean?
As a noun, "prosthesis" means: An artificial replacement for a body part, either internal or external.
What words are commonly confused with "prosthesis"?
"prosthesis" is commonly confused with "prosthetic", "prosthetics". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "prosthesis"?
The IPA (International Phonetic Alphabet) transcription for "prosthesis" is /pɹɒsˈθiːsɪs/. 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 "prosthesis"?
Via Latin, from Ancient Greek πρόσθεσις (prósthesis, “addition”), from προστίθημι (prostíthēmi, “I add”), from πρός (prós, “towards”) + τίθημι (títhēmi, “I place”), from Proto-Indo-European *próti, *préti + *dʰédʰeh₁ti (“to be putting, to be placi... 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 "prosthesis", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list