FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

'ammah am-maw' — prolonged from 517; properly, 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):--cubit, + hundred (by exchange for 3967), measure, post.

see HEBREW for 0517 see HEBREW for 03967