Strong's #77: adapanos (pronounced ad-ap'-an-os)
from 1 (as negative particle); and 1160; costless, i.e. gratuitous:--without expense.
Thayer's Greek Lexicon:
̓́
adapanos
1) without expense, requiring no outlay, costing nothing
Part of Speech: adjective
Relation: from G1 (as negative particle) and G1160
Usage:
This word is used 1 times:
1 Corinthians 9:18: "the gospel of Christ without charge, that I abuse not my power"