Lewis & Short

rĕ-curvo, no perf., ātum, 1, v. a., to bend or curve backwards, to turn back (not ante-Aug.): equi colla, Ov. H. 4, 79: radicem, Col. 5, 10, 13: palmam, Gell. 3, 6, 2: in caput aquas, Ov. Am. 1, 8, 6: gladios in vulnera, Stat. Th. 3, 583.
In part. perf.: mucrone intus recurvato, Cels. 7, 7, 4: os magis in exteriora, id. 8, 1 fin.: undae (Maeandri), winding, serpentine, Ov. M. 2, 246.