1: ὀμνύω
(Strong's #3660 — Verb — omnumi | omnuo — om-noo'-o )

is used of "affirming or denying by an oath," e.g., Matthew 26:74; Mark 6:23; Luke 1:73; Hebrews 3:11,18; 4:3; 7:21; accompanied by that by which one swears, e.g., Matthew 5:34,36; 23:16; Hebrews 6:13,16; James 5:12; Revelation 10:6 . Cp. ADJURE.

1—Timothy 1:10FORSWEAR.