- to spend the summer, as at a specific place or in a certain activity.
- Zoology. to spend a hot, dry season in an inactive, dormant state, as certain reptiles, snails, insects, and small mammals.
Origin of estivate
- (intr) the usual US spelling of aestivate
"to spend the summer," mid-17c., from Latin aestivatus, past participle of aestivare "to spend the summer," from aestus "heat," aestas "summer," literally "the hot season," from Proto-Italic *aissat-, from PIE *aidh- "to burn" (see edifice). Related: Estivated; estivating.