בראשית לד:כט פירוש: רש״י, רד״ק וSiftei Chakhamim

חילם means THEIR WEALTH. Examples are: (Deuteronomy 8:17) “hath gotten me this (חיל) wealth”; (Numbers 19:18) “and Israel acquireth (חיל) wealth”; (Psalms 49:11) “and they leave (חילם) their wealth to others”.

ואת כל חילם, silver, gold , and precious stones.

From the term שבייה. The accent is, therefore, on the latter syllable. But if the accent was on the first syllable, like with קמו and שבו, the root would be שוב. Then it would mean “returning.”