に就て[nitsuite] concerning
に就き[nitsuki] because of
去就[kyoshuu] committing one's self
就いては[tsuiteha] in line with this
就きましては[tsukimashiteha] in line with this

就く[tsuku] to ascend (the throne)
就ける[tsukeru] to install (a king, emperor, etc.)
就学[shuugaku] entering school
就学義務[shuugakugimu] compulsory school attendance
就学児童[shuugakujidou] school child

緩々[yuruyuru] very loose
緩い[nukui] lukewarm
緩い[yurui] loose
緩み[yurumi] slack
緩む[yurumu] to become loose

緩める[yurumeru] to loosen
緩やか[yuruyaka] loose
緩下薬[kangeyaku] laxative
緩急[kankyuu] pace
緩行[kankou] going slowly