Strong's #4854: Massa' (pronounced mas-saw')
the same as 4853; burden; Massa, a son of Ishmael:--Massa.
Brown-Driver-Briggs Hebrew Lexicon:
ּׂ
maśśâ'
Massa = "burden"
1) a son of Ishmael
Part of Speech: noun proper masculine
Relation: the same as H4853
Usage:
This word is used 2 times:
Genesis 25:14: "And Mishma, and Dumah, and Massa,"
1 Chronicles 1:30: "Mishma, and Dumah, Massa, Hadad, and Tema,"