Lexical Definition

‎סַנְוֵר‎ çanvêr (san-vare') blindness H:N-M
of uncertain derivation

blindness.

1) sudden blindness

Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
בַּסַּנְוֵרִ֖ים with sudden blindness 2Kgs.6.18
בַּסַּנְוֵרִ֔ים with sudden blindness Gen.19.11
בַּסַּנְוֵרִ֑ים with sudden blindness 2Kgs.6.18

Brown-Driver-Briggs

‎סַנְוֵרִים‎ noun [masculine] plural intensive or abstract (Sta§ 324 b) sudden blindness (etymology dubious; derivation from ‎נוּר‎ highly improbable, whether antiphrase WetzstDe Psalms 4, 886 ii. 1, 404, or from dazzling, compare 'flimmern' HoffmZAW ii (1882), 68; but also view of HalRŠJ xi. 66 derivatives from √ ‎סנר‎ cover with a skin, i.e. produce film over, lacks demonstration; at present we must be content with assuming quadriliteral √, Thes Sta§ 243); — ‎׳‎‎הִכּוּ בַּסּ‎ Gen 19:11 (J) they smote the men with sudden blindness, compare 2Kgs 6:18; 2Kgs 2:18 (all cases miraculous, and in Kings temporary).

Brown-Driver-Briggs References

Book Refs
Genesis 19:11
2 Kings 2:18 · 6:18