Mammoth Uncensored Word List:
38 words ending with nk, 8 letters long

antitank bobolink cheewink chipmunk claybank cryobank cufflink databank datalink downlink eyeblink firepink forerank forswink forswunk forthink heatsink hoodwink iceblink kerplunk misthink newslink outdrank outdrink outdrunk outflank outthank outthink overrank postpunk prefrank redshank sandbank snaplink snowbank stopbank unshrunk zebadonk