Lexical Definition

‎אֶמֶשׁ‎ ʼemesh (eh'-mesh) last night H:Adv
time past, i.e.

former time, yesterday(-night)

1) yesterday, last night
2) recently (fig.)

Usage: 5 forms in 5 verses
Form Translated As     In Verse(s)
אָֽמֶשׁ last night Gen.31.42
אֶ֣מֶשׁ last night Gen.31.29
אֶ֝֗מֶשׁ yesterday of Job.30.3
אֶ֙מֶשׁ֙ yesterday 2Kgs.9.26
אֶ֖מֶשׁ last night Gen.19.34

Brown-Driver-Briggs

‎אֶ֫מֶשׁ‎ adverb yesterday (etymology dubious; MV after Fl De on Job 30:3 compare Sta§ 256 c derive from √ ‎משׁה‎ = Arabic , whence , evening; see also in Thes, & compare Assyrian mušu, night COTGloss, Ethiopic but also Arabic = Assyrian amšatu, yesterday) = last night Gen 19:34; Gen 31:29; Gen 31:42 (‎אָ֑מֶשׁ‎); = recently 2Kgs 9:26. — Job 30:3 ‎שׁוֺאָה‎ ‎׳‎‎א‎ is difficult & uncertain Thes MV and others darkness, gloom of wasteness, so RV, but dubious, compare Di; G. Hoffm. reads ‎׳‎‎אֵם שׁ‎ = the mother of (all) the ruined ( said of the desert). ‎אֱמֶת‎ ‎אֲמִתַּי‎ see ‎אמן‎. ‎אַמְתַּ֫חַת‎ see ‎מתח‎.

Brown-Driver-Briggs References

Book Refs
Genesis 19:34 · 31:29 · 31:42
2 Kings 9:26
Job 30:3