Here's what rhymes with proecipue.
you true blue drew u blew lieu lu rue brew loo pew yew yu ewe ru roux to who do two new through too few view due knew du grew que crew threw coup flew q qu shoe zu clue cue dew glue hue queue shew su sue tu vous chew cu deux flue fu slew zoo bu flu hu ju jus ku mu nu peu piu pu seu shu sou thru vu woo boo chou chu coo cou doo feu fue gu hew mieux shou shrew sinew sprue thu tue tzu vou vue wou wu clew goo imbue mew moo pooh strew poo shoo spew gnu indue slue thew whew phew overdrew into pursue overview screw withdrew anew renew accrue debut ensue stew subdue taboo untrue adieu ado overthrew skew tattoo beaucoup outdo revue outgrew redo halloo valuer endue fondue bestrew overflew overgrew booboo achoo review interview hitherto bamboo canoe undue retinue undo jusqu overdue eschew shampoo vnto askew overdo ballyhoo foreknew zebu kazoo muumuu overshoe prevue superglue wazoo regrew atishoo revenue residue avenue caribou construe barbecue honeydew hullabaloo barbeque bugaboo marabou peekaboo buckaroo rendezvous kangaroo cockatoo misconstrue