עָרʻâr

only 2 times, read צָרֶ֑ךָ thine adversary, very dubious (1 Samuel 28:16; Psalms 139:20)

Pronunciation: awr · Hebrew/Aramaic (Old Testament) · H6145

Same root

עוּרʻûwr · H5782to wake (literally or figuratively)
עָרʻâr · H6146{a foe (as watchful for mischief)}

Where it appears

Appears 2 times in the Bible.

1 Samuel 28:16 But Samuel replied, “Why ask me, since the Lord has left you and has become your enemy?
Psalms 139:20 They blaspheme you; your enemies misuse your name.

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).