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

奥床しい[okuyukashii] refined
温床[onshou] hotbed
川床[kawadoko] riverbed
火床[hidoko] fire bed
臥床[gashou] confined to bed

岩床[ganshou] bedrock
起床[kishou] rising
胡床[agura] sitting cross-legged (i.e. Indian style)
胡床をかく[agurawokaku] to sit cross-legged
鉱床[koushou] ore deposit