sub-sanno

āre, v. a.

sanna

I. to insult by derisive gestures, to deride, mock (late Lat.): ecce ipsi quasi subsannantes, Tert. adv. Jud. 11 med.; Hier. Ep. 40, 2; Vulg. Psa. 34, 16; id. Isa. 37, 22.
Lewis & Short
A Latin Dictionary, 1879
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