Here's what rhymes with mothertree.
tree pre ye li plea tlie lee ri ry lea yi lii pari prix rhe brie be he we me she t de see three d free p pp b c sea v ve key agree di g tea thee fee knee ne si z bee mi te vii dc debris flee je ni sie ti wee xi xii xiii ci glee hee hie ki nee pea tc tee wi wie bc dd dy flea gi gli hae ji mea mee ny quay shi shih thi whieh ze alii bailee bb chih dee fea fie gee ghee lhe nae nie pee qi rny sae sci shee spree tiie tke xy zi twee whee shoetree degree decree qui ac esprit fc fhe lessee ski xxi xxii xxiii db kb pc pg rupee sv tp trainee xxxi appellee bt donee dp jt pd quis tb tv xxxii xxxiii queerly scree tepee bursae parolee prithee ranee wormy aurorae epee saree teepee honoree sudsy topee footsie puttee sirree yippee maharanee sultrier http cc trustee disagree xvi xvii cd foresee marquis nominee absentee addressee assignee jubilee oversee referee sd sibi xxvi xxvii apogee appointee ftp hyperbole marquee pensee vendee xxxvi xxxvii bowsprit filigree goatee oversea retiree settee abscissae banshee curie manatee potpourri suttee artsy attendee emcee fusee gutsy axletree draftee jamboree whoopee florae kedgeree soignee tootsie whiffletree paltrier wintrier nobody mit devotee exp grantee licensee phonology quelque diastole legatee repartee amphorae undersea amputee detainee honeybee escapee internee monody quinsy returnee wannabe colossally deportee dungaree abductee singletree whippletree wannabee guarantee bourgeoisie mortgagee guaranty interviewee consignee transferee tympani franchisee bumblebee timpani calliope invitee chiropody conferee enlistee inductee guarani idiosyncrasy