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

若し[moshi] if
若しかしたら[moshikashitara] perhaps
若しかして[moshikashite] perhaps
若しかすると[moshikasuruto] perhaps
若い[wakai] young

若さ[wakasa] youth
若しくは[moshikuha] or
若干[jakkan] some
若死に[wakajini] premature death
若者[wakamono] young man