coruscatio
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
Latin > English (Lewis & Short)
cŏruscātĭo: ōnis, f. id.,
I a glittering, a flash, coruscation (post-class.): (margaritarum), Sol. 53 fin.: immanis, Vop. Car. 8.
