Mark 6:23 And he sware unto her, Whatsoever thou shalt ask of me, I will give it thee, unto the half of my kingdom. [kjv]
και ωμοσεν αυτη ο τι εαν με αιτησης δωσω σοι εως ημισους της βασιλειας μου [gnt]
In ancient times, one might take an "
oath" or "
vow". The ancient Greek word
"ὅρκος" ≈ "oath" as in the "
object by which one swears" and is related to
"ἕρκος" ≈ "fence".
The Greek word is related to the shoulder. In the next verse, Luke uses the word for "
swear" (verb) as «
ωμοσεαν» whereas the word «
ορκον» (noun) is used for the "
oath".
Luke 1:73 The oath which he sware to our father Abraham, [kjv]
ορκον ον ωμοσεν προς αβρααμ τον πατερα ημων του δουναι ημιν [gnt]
The root word is
"ὠμός" ≈ "rude, raw, savage".
.