אֶלְיָדָעʼElyâdâʻ

proper name, masculine: God knows

Pronunciation: el-yaw-daw' · Hebrew/Aramaic (Old Testament) · H450

Meanings

a. son of David (2 Samuel 5:16; 1 Chronicles 3:8; 1 Chronicles 14:7)

b. father of an adversary of Solomon (1 Kings 11:23)

c. chief of Benjamin (2 Chronicles 17:17)

Same root

אֵלʼêl · H410strength; as adjective, mighty; especially the Almighty (but used also of any deity)
יָדַעyâdaʻ · H3045to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially (including observation, care, recognition; and causatively, instruction, designation, punishment, etc.)

Where it appears

Appears 4 times in the Bible.

2 Samuel 5:16 Elishama, Eliada, and Eliphelet.
1 Kings 11:23 God also raised up Rezon son of Eliada as Solomon’s adversary. Rezon had fled from his master, King Hadadezer of Zobah,
1 Chronicles 3:8 Elishama, Eliada, and Eliphelet.
2 Chronicles 17:17 From Benjamin there were 200,000 troops equipped with bows and shields. They were under the command of Eliada, a veteran soldier.

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).