Mammoth Uncensored Word List:
37 words ending with yl, 8 letters long

acetoxyl benadryl biacetyl bimethyl biphenyl carbamyl carbaryl carbonyl carboxyl cinnamyl deprenyl diacetyl didactyl dimethyl diphenyl epicotyl ethanoyl fentanyl glyceryl glycosyl hydroxyl isobutyl mersalyl mesophyl methoxyl metopryl naphthyl nitrosyl nitroxyl propenyl strongyl succinyl sulfinyl sulfonyl sulfuryl triethyl zirconyl