Strong’s Hebrew
H3883 — luwl
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
לוּל
luwl — pronounced lool
from an unused root meaning to fold back; a spiral step:--winding stair. Compare 3924. see H03924
1 occurrence in the KJV.
1 Kings 6:8
The door for the middle chamber was in the right side of the house: and they went up with winding stairs into the middle chamber, and out of the middle into the third.