Percoquo, pércoquis, pen. co percoxi, percoctum, percóquere. Plin. To seeth or boile throughly: to concoct persitely: to make throughly ripe.Ardor terram percoxerat igni. Lucr. Had tried sore.Mora percoquit vuas.Ouid.Ripeneth grapes.Humorem percoquere. Lucr. Sol percoquit fructus. Sen. The sunne ripeth fruites.
Lewis and Short: Latin dictionary
per-cŏquo, xi, ctum, 3, v. a., to boil or cook thoroughly, boil soft.I.Lit.: prandium, Plaut. Merc. 3, 3, 18: bubulas carnes, Plin. 23, 7, 64, 127: lens non bene percocta, id. 22, 25, 70, 142.—Prov.: In digitis hodie percoquam quod ceperit, Plaut. Rud. 4, 1, 11.—II.Transf.A.To heat: umorem, Lucr. 6, 858: terram, id. 5, 1254.—B.To ripen: mora percoquit uvas, Ov. R. Am. 83: sol percoquit fructus, Sen. Ben. 7, 31, 3: messem, Plin. Ep. 5, 6, 8.—C.To scorch, to blacken by the heat of the sun: nigra virum percocto saecla colore, Lucr. 6, 722.