one's backside / the back, the rear (both spatially and temporally)

the rear, back, or backside of something / the rearward or backward direction / the portion of a palace where a queen or other female imperial consort lives

later, afterwards, some time after the present

(obsolete) later, afterwards, some time after the present

later, afterwards, some time after the present

after

prefixing element in kanji compounds, adding a meaning of later, after, following, rearward

subsequently, afterwards

(後 "spatially behind") to depart from; to leave / (後 "temporally later") to put off something, to be dealt with later

waiting impatiently / time dragging on