How to say "yesterday" in Arabic
CognateMeaningyesterday
Arabic · Modern Standard Arabic
أَمْس
amsאמס
أمس
Hebrew · Modern Hebrew
אתמול
etmolإِتْمُول
How the two words are related
Cognate
Same Semitic root, same meaning — you already know this word.
Arabic root
ء-م-سHebrew root
א-מ-שHebrew אמש is the same word as Arabic ams — the regular ש↔س swap. Hebrew uses it mostly for 'last night', Arabic for 'yesterday': same word, a hair of drift.
Related Hebrew word:אמשemeshإِمِش
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On the street
How people actually say it in the spoken dialects, where it differs from the standard word.
Levantine · Palestine, Jordan, Lebanon, Syria
مْبَارِح
mbāriḥמבארחThe spoken word, from al-bāriḥa 'the past (night)'.
Egyptian · Cairo and the Nile Delta
اِمْبَارِح
imbāriḥאמבארחCairo: imbāriḥ, with a helping vowel in front.
Moroccan · Morocco — Casablanca, Rabat, Fes
الْبَارح
l-bāreḥאל-בארחDarija: l-bāreḥ — the article is still audible.
In a phrase
وَصَلْتُ أَمْس
waṣaltu amsוצלת אמסI arrived yesterday