Sahasa- Immediately

abindum avisargaṃ ca akāraṃ japato mahān |
udeti devi sahasā jñānaughaḥ parameśvaraḥ || 90 ||

Interesting choice of words here to mean immediately - the sense of violence, even shock.

(instr. of sahas) , forcibly , vehemently , suddenly , quickly , precipitately , immediately , at once , unexpectedly , at random , fortuitously , in an unpremeditated manner , inconsiderately (with instr. " together with ").

sahasā
sahasā [p= 1193,1] [L=240018]
instr. of sahas) , forcibly , vehemently , suddenly , quickly , precipitately , immediately , at once , unexpectedly , at random , fortuitously , in an unpremeditated manner , inconsiderately (with instr. " together with ").
sáhas [p= 1193,1] [L=240010]
powerful , mighty , victorious (superl. tama) RV.
sáhas [p= 1193,1] [L=240011]
the month mārgaśīrṣa or agrahāyaṇa (November-December) , the winter season VS. Sus3r. Pur.
sáhas [p= 1193,1] [L=240012]
strength , power , force , victory (sahasas putra or °sah sūnu m. " son of strength " , N. of agni in RV. ; sahasā ind. » below ; sahobhih ind. = " mightily , intensely ") RV. &c
sáhas [p= 1193,1] [L=240013]
water Naigh. i , 12
sáhas [p= 1193,1] [L=240014]
light L. ; N. of various sāmans A1rshBr. [cf. Goth. sigis ; Angl.Sax. sigor , sege ; Germ. Sieg] ,

(H2)	(
(H2)	mfn.
(H2B)	m.
(H2B)	n.
(H2B)	n.
(H2B)	n.