How to say "groom, bridegroom" in Arabic

The male partner to ʿarūs (bride). Hebrew has its own arus/arusa (אָרוּס/אָרוּסָה, 'fiancé/fiancée'), often compared with Arabic عرس ('wedding') — but the sounds don't line up by the regular rules: Hebrew א stands where Arabic has ع, and the biblical spelling of the root, א-ר-שׂ, has שׂ where Arabic has س. So linguists debate the link; as a memory pair it still works — in Arabic he's already the groom, not merely engaged.