And strip
pashat  (paw-shat')
to spread out (i.e. deploy in hostile array); by analogy, to strip (i.e. unclothe, plunder, flay, etc.)
'Aharown  (a-har-one')
Aharon, the brother of Moses -- Aaron.
of his garments
beged  (behg'-ed)
a covering, i.e. clothing; also treachery or pillage -- apparel, cloth(-es, ing), garment, lap, rag, raiment, robe, very (treacherously), vesture, wardrobe.
and put
labash  (law-bash')
wrap around, i.e. (by implication) to put on a garment or clothe (oneself, or another), literally or figuratively
them upon Eleazar
'El`azar  (el-aw-zawr')
God (is) helper; Elazar, the name of seven Israelites -- Eleazar.
his son
ben  (bane)
a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or condition, etc.
and Aaron
'Aharown  (a-har-one')
Aharon, the brother of Moses -- Aaron.
shall be gathered
'acaph  (aw-saf')
to gather for any purpose; hence, to receive, take away, i.e. remove
unto his people and shall die
muwth  (mooth)
causatively, to kill