cubits is a form of:

Cubit



noun
1.
(An ancient measure of length varying from 17 to 21 inches) ហត្ថ (រង្វាស់បុរាណ)
ENGLISH MEANING
noun
1.
The forearm; the ulna, a bone of the arm extending from elbow to wrist.
2.
A measure of length, being the distance from the elbow to the extremity of the middle finger.