חֵלֶףchêleph

exchange, in return for (Genesis 4:23; Numbers 18:21; Numbers 18:31)

Pronunciation: klay'-lef · Hebrew/Aramaic (Old Testament) · H2500

Same root

חָלַףchâlaph · H2498properly, to slide by, i.e. (by implication) to hasten away, pass on, spring up, pierce or change
חֶלֶףCheleph · H2501Cheleph, a place in Palestine

Where it appears

Appears 2 times in the Bible.

Numbers 18:21 As for the tribe of Levi, your relatives, I will compensate them for their service in the Tabernacle. Instead of an allotment of land, I will give them the tithes from the entire land of Israel.
Numbers 18:31 You Levites and your families may eat this food anywhere you wish, for it is your compensation for serving in the Tabernacle.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).