G4135 πληροφορέω (plērophoréō)

KJV renderings: most surely believe, fully know (persuade), make full proof of
Strong's definition: to carry out fully (in evidence), i.e. completely assure (or convince), entirely accomplish
Derivation: from G4134 (πλήρης) and G5409 (φορέω);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.