אַמָּהʼammâh

cubit (Daniel 3:1; Ezra 6:3; Ezra 6:8)

Pronunciation: am-maw' · Hebrew/Aramaic (Old Testament) · H521

Same root

אַמָּהʼammâh · H520properly, a mother (i.e. unit of measure, or the fore-arm (below the elbow), i.e. a cubit; also a door-base (as a bond of the entrance)

Where it appears

Appears 4 times in the Bible.

Ezra 6:3 “In the first year of King Cyrus’s reign, a decree was sent out concerning the Temple of God at Jerusalem. “Let the Temple be rebuilt on the site where Jews used to offer their sacrifices, using the original foundations. Its height will be ninety feet, and its width will be ninety feet.
Daniel 3:1 King Nebuchadnezzar made a gold statue ninety feet tall and nine feet wide and set it up on the plain of Dura in the province of Babylon.

See every passage

Ezra 6:3
Daniel 3:1

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).