Mammoth Uncensored Word List:
41 words ending with nk, 9 letters long

cantabank chainlink clovepink crosslink cyberpunk dandyfunk etherlink foreshank forethink gangplank goldspink gowdspink halfdrunk hindshank hornywink hyperlink interbank interlink kiddywink multibank multilink nonshrink overdrank overdrink overdrunk overfrank overstank overstink overstunk overthink pickthank piggybank preshrank preshrink preshrunk riverbank snowblink superbank thinktank treetrunk watertank