Strong's #4143: muwcad (pronounced moo-sawd')
from 3245; a foundation:--foundation.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
mûsâd
1) foundation, laying of foundation, foundation-laying
Part of Speech: noun masculine
Relation: from H3245
Usage:
This word is used 2 times:
2 Chronicles 8:16: "was prepared unto the day of the foundation of the house of the LORD, and until it was finished."
Isaiah 28:16: "a precious corner stone, a sure foundation: he that believeth shall not make haste."