vernation

noun

ver·​na·​tion (ˌ)vər-ˈnā-shən 

: the arrangement of foliage leaves within the bud compare estivation

Word History

Etymology

borrowed from New Latin vernātiōn-, vernātiō, from Latin vernāre "to carry on as in spring, be springlike" (verbal derivative of vernus "of spring") + -tiōn-, -tiō, suffix of deverbal nouns — more at vernal

First Known Use

1793, in the meaning defined above