Though while he lived
chay  (khah'-ee)
age, alive, appetite, (wild) beast, company, congregation, life(-time), live(-ly), living (creature, thing), maintenance, + merry, multitude, + (be) old, quick, raw, running, springing, troop.
he blessed
barak  (baw-rak')
to kneel; by implication to bless God (as an act of adoration), and (vice-versa) man (as a benefit); also (by euphemism) to curse (God or the king, as treason)
his soul
nephesh  (neh'-fesh)
a breathing creature, i.e. animal of (abstractly) vitality; used very widely in a literal, accommodated or figurative sense (bodily or mental)
and men will praise
yadah  (yaw-daw')
cast (out), (make) confess(-ion), praise, shoot, (give) thank(-ful, -s, -sgiving).
thee when thou doest well
yatab  (yaw-tab')
to be (causative) make well, literally (sound, beautiful) or figuratively (happy, successful, right)
to thyself