The Proto-Semitic word maʾ, may
Word maʾ, may
Meaning water

Comments
Kaye, Alan S. "Christopher Ehret. Reconstructing Proto-Afroasiatic (Proto-Afrasian): Vowels, Tone, Consonants, and Vocabulary", University of California 1995

Other words that might be of interest
baḥr ‘sea, lake’, yamm ‘sea’