Strong’s Greek
G1037 — buthos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
βυθός
buthos — pronounced boo-thos'
a variation of 899; depth, i.e. (by implication) the sea:--deep. see GREEK for 899
1 occurrence in the KJV.
2 Corinthians 11:25
Thrice was I beaten with rods, once was I stoned, thrice I suffered shipwreck, a night and a day I have been in the deep;