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

市肆[shishi] store
肆意[shii] arbitrariness
驕肆[kyoushi] being proud and self-willed

書肆[shoshi] bookstore
放肆[houshi] licentious
酒肆[shushi] liquor shop