伸べる[noberu] to lay out (a futon)
延伸[enshin] extension
屈伸[kusshin] elasticity
欠伸[akubi] yawn
差伸べる[sashinoberu] to hold out

三伸[sanshin] second postscript
伸し[noshi] stretching
伸し掛る[noshikakaru] to lean on
伸し上がる[noshiagaru] to stand on tiptoe
伸し上げる[noshiageru] to promote

ガス欠[gasuketsu] running out of gasoline (petrol)
欠けがえのない[kakegaenonai] irreplaceable
間欠[kanketsu] intermittence
金欠[kinketsu] running out of money
欠かす[kakasu] to miss (doing)

欠く[kaku] to chip
欠け[kake] fragment
欠ける[kakeru] to be chipped
欠員[ketsuin] vacancy
欠課[kekka] cutting class