Strong’s Hebrew
H3248 — ycuwdah,
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
יְסוּדָה
ycuwdah, — pronounced yes-oo-daw
feminine of 3246; a foundation:--foundation. see H03246
1 occurrence in the KJV.
Psalms 87:1
His foundation is in the holy mountains.