Strong’s Greek
G4880 — sunapothnesko
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
συναποθνῄσκω
sunapothnesko — pronounced soon-ap-oth-nace'-ko
from 4862 and 599; to decease (literally) in company with, or (figuratively), similarly to:--be dead (die) with. see GREEK for 4862 see GREEK for 599
3 occurrences in the KJV.
Mark 14:31
But he spake the more vehemently, If I should die with thee, I will not deny thee in any wise. Likewise also said they all.
2 Corinthians 7:3
I speak not this to condemn you: for I have said before, that ye are in our hearts to die and live with you.
2 Timothy 2:11
It is a faithful saying: For if we be dead with him, we shall also live with him: