Mammoth Uncensored Word List:
51 words ending with u, 4 letters long

aglu aitu balu beau bedu bubu clou ecru frau guru huhu iglu juju koru kudu kutu kuzu latu leku lieu litu luau masu menu meou mumu namu ombu patu prau puku pulu pupu ratu rimu ruru susu tatu tegu thou thru tofu tolu tutu unau vatu vrou yuzu zebu zobu zulu