His flesh
basar (baw-sawr')
flesh (from its freshness); by extension, body, person; also (by euphem.) the pudenda of a man -- body, (fat, lean) flesh(-ed), kin, (man-)kind, + nakedness, self, skin.
shall be fresher
ruwtaphash (roo-taf-ash')
to be rejuvenated -- be fresh.
than a child's
no`ar (no'-ar)
(abstractly) boyhood -- child, youth.
he shall return
shuwb (shoob)
to turn back (hence, away) transitively or intransitively, literally or figuratively
to the days
yowm (yome)
a day (as the warm hours),
of his youth
`aluwm (aw-loom')
(only in plural as abstract) adolescence; figuratively, vigor -- youth.