theriaca
"theriaca" is a 8-letter English headword indexed on PlainSpell.
The verdict
“theriaca” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Alternative spelling of theriac.
| Property | Value |
|---|---|
| Headword | theriaca |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “theriaca” sits in English frequency
Spelling & Dictionary Insight
The English entry for theriaca is 8 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "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
- 1Alternative 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
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Using “theriaca”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-H-E-R-I-A-C-A - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.