סֶלַעÇelaʻ

proper name [of a location]: in Edom, site dubious (Judges 1:36; 2 Kings 14:7; Isaiah 16:1)

Pronunciation: seh'-lah · Hebrew/Aramaic (Old Testament) · H5554

Same root

סֶלַעçelaʻ · H5553a craggy rock, literally or figuratively (a fortress)

Where it appears

Appears 4 times in the Bible.

Judges 1:36 The boundary of the Amorites ran from Scorpion Pass to Sela and continued upward from there.
2 Kings 14:7 Amaziah also killed 10,000 Edomites in the Valley of Salt. He also conquered Sela and changed its name to Joktheel, as it is called to this day.
Isaiah 16:1 Send lambs from Sela as tribute to the ruler of the land. Send them through the desert to the mountain of beautiful Zion.
Isaiah 42:11 Join in the chorus, you desert towns; let the villages of Kedar rejoice! Let the people of Sela sing for joy; shout praises from the mountaintops!

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).