ὑπείκω
to retire, withdraw, depart
ὑπείκω to surrender
Derivation: from G5259 and εἴκω (to yield, be "weak");
KJV Usage: submit self. G5259
Thayer:
ὑπ-είκω: fr. Hom. down; to resist no longer, but to give way, yield, (prop. of combatants); metaph. to yield to authority and admonition, to submit: Heb. xiii. 17.*
1) to resist no longer, but to give way, yield (of combatants)
2) metaph. to yield to authority and admonition, to submit

ὑπείκω
hupeikō
hoop-i'-ko
From G5259 and G1502 εἴκω eikō (to yield, be “weak”); to surrender
KJV Usage: submit self.