ὀμνύω (omnýōom-noo'-overbto swear);
[Grk] ὀμνύω, ὄμνυμι LN: 33.463 GK: G3922, G3923 Hebrew: אָמַר, שָׁבַע, תָּפַשׂ
Derivation: a prolonged form of a primary, but obsolete ὄμω, for which another prolonged form ὀμόω (omóōom-o'-o) is used in certain tenses;
Strong's: to swear, i.e. take (or declare on) oath
KJV: --swear.