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

芋茎[zuiki] taro stem
陰茎[inkei] penis
花茎[kakei] stem of flower
球茎[kyuukei] corm
歯茎[haguki] gums

地下茎[chikakei] rhizome
直立茎[chokuritsukei] erect stem
包茎[houkei] phimosis
水茎[mizuguki] writing brush