חֵילָםChêylâm

proper name [of a location]: east of Jordan (2 Samuel 10:16; 2 Samuel 10:17; Ezekiel 47:16)

Pronunciation: khay-lawm' · Hebrew/Aramaic (Old Testament) · H2431

Same root

חַיִלchayil · H2428probably a force, whether of men, means or other resources; an army, wealth, virtue, valor, strength

Where it appears

Appears 2 times in the Bible.

2 Samuel 10:16 they were joined by additional Aramean troops summoned by Hadadezer from the other side of the Euphrates River. These troops arrived at Helam under the command of Shobach, the commander of Hadadezer’s forces.
2 Samuel 10:17 When David heard what was happening, he mobilized all Israel, crossed the Jordan River, and led the army to Helam. The Arameans positioned themselves in battle formation and fought against David.

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).