wilt Definition

wilt¹
verb, intr wilted, wilting

1. bot.
Said of a plant organ or tissue: to droop or become limp because there is insufficient water to maintain the individual cells in a turgid state.
Thesaurus: languish, wane, atrophy, droop, sag, wither, diminish; Antonym: perk up.
2. To droop from fatigue or heat.
3. To lose courage or confidence.

noun

1. The act or process of wilting.
2. bot.
One of a number of plant diseases, often caused by fungal infection, in which wilting is the main sign.

Etymology: 17c: a variant of wilk to wither.

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wilt²
verb

1. old use or relig
, 2nd person singular of will¹ used with the pronoun thou.