Sleepwort

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of lettuce (Lactuca sativa) rare, uncountable

Synonyms

All synonyms
lettuce

Etymology

From Middle English slepwort, slepwourt, equivalent to sleep + wort, after the mild sedative properties of lactucarium.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.