21:45 SAY [unto all men]: 1 but warn you on the strength of divine revelation!" But the deaf [of heart] will not hearken to this call, however often they are warned.*
Muhammad Asad (The Message Of Quran)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
Thereupon We let loose upon them floods, and [plagues of] locusts, and lice, and frogs, and [water turning into] blood* -distinct signs [all]: but they gloried in their arrogance, for they were people lost in sin.