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lemma

/ˈlɛmə/ noun

In Latin: lēmma Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about lemma at Wordnik → Where our words come from →

  1. A subsidiary proposition that is assumed to be true in order to prove another proposition.
  2. The lower and stouter of the two glumes immediately enclosing the floret in most Gramineae.
  3. The heading that indicates the subject of an annotation or a literary composition or a dictionary entry.

Origin

Borrowed from Ancient Greek λῆμμᾰ (lêmmă, “premise, assumption”), from the same root as λᾰμβᾰ́νω (lămbắnō, “to take”).

From Wiktionary, via Kaikki.org (CC BY-SA)