Strong’s Greek
G5387 — philostorgos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
φιλόστοργος
philostorgos — pronounced fil-os'-tor-gos
from 5384 and storge (cherishing one's kindred, especially parents or children); fond of natural relatives, i.e. fraternal towards fellow Christian:--kindly affectioned. see GREEK for 5384
1 occurrence in the KJV.
Romans 12:10
Be kindly affectioned one to another with brotherly love; in honour preferring one another;