oestrus — Lewis & Short
oestrus, i, m., = oi)=stros.
I Lit., a gad-fly, horse-fly, breese (pure Lat. asilus):
volitans, cui nomen asilo Romanum est, oestrum Graii vertere vocantes,Verg. G. 3, 148:
nascuntur in extremis favis apes grandiores, quae ceteras fugant: oestrus vocatur hoc malum,Plin. 11, 16, 16, § 47.—
II Transf., frenzy of a prophet or poet, inspiration, enthusiasm (in post-Aug. poets), Stat. Th. 1, 32; Nemes. Cyneg. 3; Juv. 4, 123; cf.: oestrum furor Graeco vocabulo, Paul. ex Fest. p. 195 Müll.