火燵掛布[kotatsugake] cover for kotatsu
引っ掛る[hikkakaru] to be caught in
引っ掛ける[hikkakeru] to hang (something) on (something)
押掛ける[oshikakeru] to intrude on
押掛け客[oshikakekyaku] uninvited guest

下掛る[shimogakaru] to talk about indecent things
下駄掛け[getagake] wearing wooden clogs
夏掛け[natsugake] summer-use futon
掛り[kakari] starting
掛かり合う[kakariau] to have dealings with

謎謎[nazonazo] riddle
謎解き[nazotoki] solution of a riddle
謎をかける[nazowokakeru] to pose a riddle

謎めく[nazomeku] to be enigmatic or puzzling
謎掛け[nazokake] a particular type of riddle
謎を解く[nazowotoku] to solve a mystery