theriac

/ˈθɪriˌæk/

//ˈθɪriˌæk// noun

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

The verdict

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

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A universal antidote against all poisons, particularly medicines considered to derive from a recipe of the Roman physician Andromachus and representing an improvement on mithridate.

Corpus desk

Index EN-theriac · theriac · English

theriac · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 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 theriac
PropertyValue
Headwordtheriac
LanguageEnglish
Part of speechNoun
IPA/ˈθɪriˌæk/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “theriac” in English

theriacsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

theriac is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈθɪriˌæk/. Rarity is why readers land here mid-draft. 4 senses are on record.

We couldn't generate a plausible misspelling set for theriac, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Medieval Latin theriacum, from Ancient Greek θηριακὸν (thēriakòn) and Late Latin theriaca, from Ancient Greek θηριακὴ (thēriakḕ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “beast”) + -ίο… The correct English form is theriac, spelled T-H-E-R-I-A-C.

Definition

  1. 1
    A universal antidote against all poisons, particularly medicines considered to derive from a recipe of the Roman physician Andromachus and representing an improvement on mithridate.
  2. 2
    A hyponym of panacea.
  3. 3
    Synonym of antidote, particularly (pseudoscience) those incorporating snakemeat to cure snakebite.
  4. 4
    Synonym of molasses.

Recorded use

Wiktionary examples

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

  1. This excellent triacle Methridatum is nexte in qualitye and virtue to Theriaca... but onely Theriaca is a little hotter and stronger againste venyme of Snakes.
  2. Theriaca Andromachi, the Venice or Mithridate treacle... Theriaca communis, common treacle, or molasses... Theriaca Londinensis, a cataplasm of cummin seed, bay-berries, germander, snake-root, cloves and honey.

Etymology

From Medieval Latin theriacum, from Ancient Greek θηριακὸν (thēriakòn) and Late Latin theriaca, from Ancient Greek θηριακὴ (thēriakḕ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “beast”) + -ίον (-íon, diminutive suffix). Doublet of theriaca.

Synonyms

This word in other languages

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 "theriac"?
"theriac" is spelled T-H-E-R-I-A-C. The IPA pronunciation is /ˈθɪriˌæk/.
What does "theriac" mean?
As a noun, "theriac" means: A universal antidote against all poisons, particularly medicines considered to derive from a recipe of the Roman physician Andromachus and representing an improvement on mithridate.
How do you pronounce "theriac"?
The IPA (International Phonetic Alphabet) transcription for "theriac" is /ˈθɪriˌæk/. 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 "theriac"?
From Medieval Latin theriacum, from Ancient Greek θηριακὸν (thēriakòn) and Late Latin theriaca, from Ancient Greek θηριακὴ (thēriakḕ, “of or related to poisonous reptiles”), from θηρίον (thēríon, “little beast”) + -κός (-kós), from θήρ (thḗr, “bea... 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.

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

Source: FrequencyWords open word-frequency list