aestīvo — Lewis & Short
aestīvo, āvi, ātum, 1, v. n.aestivus,
I to spend or pass the summer in a place (like hiemo, to pass the winter; so in Gr. qeri/zw and xeima/zw), Varr. R. R. 2, 1:
mihi greges in Apuliā hibernabant, qui in Reatinibus montibus aestivabant,id. ib. 2, 2:
intra saepem aestivant pastores opacam,Plin. 12, 5, 11, § 22; Suet. Galb. 4; id. Vesp. 24; Stat. S. 4, 4, 22.