صَعَقٌ

is a verbal noun of صَعِقَ [q. v.]: (Msb, K:) and primarily signifies A swooning, or becoming insensible, in consequence of a vehement sound that one hears; and sometimes, such that one dies in consequence thereof:

afterwards often used as meaning Death. (TA.)

[Also] Vehemence of sound or voice: (O, K:) and vehemence of braying of an ass; used in this sense by Rubeh; (O, * TA;) and said by Az to be originally ↓ صَعْقٌ. (TA.)