Lewis Short
(verb) : sub-vŏlo, āre
* To fly up or upwards (rare but class.): hae (partes corporum) sursum in caelestem locum subvo lent, Cic. Tusc. 1, 17, 40: avis,Ov. M. 11, 790: ex agmine,id. ib. 14, 507: praepes,id. ib. 14, 577: ad capita, Aug. Civ. Dei, 18, 16 fin.: alte,Aur. Vict. Vir. Ill. 6, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary