theriaca

noun

"theriaca" is a 8-letter English headword indexed on PlainSpell.

The verdict

“theriaca” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative spelling of theriac.

Corpus desk

Index EN-theriaca · theriaca · English

theriaca · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" thin
  • PHOTO-UNK Peer pending

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.

Key facts for theriaca
PropertyValue
Headwordtheriaca
LanguageEnglish
Part of speechNoun
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “theriaca” in English

theriacaranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

theriaca is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Alternative spelling of theriac.".

Our edit-distance generator produced no likely misspellings for theriaca, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Late Latin theriaca, from Ancient Greek θηριακή (thēriakḗ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “beast”) + -ίον (-íon, diminutive suffix). Doublet of theriac; compare treacle. The correct English form is theriaca, spelled T-H-E-R-I-A-C-A.

Definition

  1. 1
    Alternative spelling of theriac.

Etymology

From Late Latin theriaca, from Ancient Greek θηριακή (thēriakḗ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “beast”) + -ίον (-íon, diminutive suffix). Doublet of theriac; compare treacle.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "theriaca"?
"theriaca" is spelled T-H-E-R-I-A-C-A.
What does "theriaca" mean?
As a noun, "theriaca" means: Alternative spelling of theriac.
What is the origin of the word "theriaca"?
From Late Latin theriaca, from Ancient Greek θηριακή (thēriakḗ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “beast”) + -ίον (-íon, diminutive suffix). Doublet of theriac; compare tre... See the full etymology section above for more details.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list