Strong’s Greek
G4517 — rhonnumi
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ῥώννυμαι
rhonnumi — pronounced hrone'-noo-mee
prolongation from rhoomai (to dart; probably akin to 4506); to strengthen, i.e. (impersonal passive) have health (as a parting exclamation, good-bye):--farewell. see GREEK for 4506
2 occurrences in the KJV.
Acts 15:29
That ye abstain from meats offered to idols, and from blood, and from things strangled, and from fornication: from which if ye keep yourselves, ye shall do well. Fare ye well.
Acts 23:30
And when it was told me how that the Jews laid wait for the man, I sent straightway to thee, and gave commandment to his accusers also to say before thee what they had against him. Farewell.