How to say "dew" in Arabic
CognateMeaningdew
Arabic · Modern Standard Arabic
طَلّ
ṭallטל
طل
Hebrew · Modern Hebrew
טל
talتَال
How the two words are related
Cognate
Same Semitic root, same meaning — you already know this word.
Arabic root
ط-ل-لHebrew root
ט-ל-לṬall is ṭal, identical in both languages, root and all. Hebrew even kept טל as a common personal name — here it just means the morning moisture on the grass.
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In a phrase
طَلّ الصَّبَاح
ṭall aṣ-ṣabāḥטל א-צבאחmorning dew