Lexical Definition

‎אֶשְׁנָב‎ ʼeshnâb (esh-nawb') lattice H:N-M
apparently from an unused root (probably meaning to leave interstices)

casement, lattice.

1) window-lattice

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
הָֽאֶשְׁנָ֑ב the widow-lattice Judg.5.28
אֶשְׁנַבִּ֣י lattice my Prov.7.6

Brown-Driver-Briggs

‎אֶשְׁנָב‎ noun [masculine] window-lattice (‎אשנב‎ Eccl 42:11); 7; absolute ‎׳‎‎א‎ Judg 5:28 suffix ‎׳‎‎אֶשְׁנַבִּ‎ Prov 7:6 (both || ‎חַלּוֺן‎).

Brown-Driver-Briggs References

Book Refs
Judges 5:28
Proverbs 7:6
Ecclesiastes 42:11