Mēros means thigh, appearing only once in the New Testament (Revelation 19:16) but representing an important OT concept. In Greek culture the thigh was associated with strength and generation. In the Hebrew background, swearing on the thigh (euphemistically the generative organs) was a solemn oath (Genesis 24:2). Jacob's hip/thigh was touched by the angel at Peniel (Genesis 32:25).
In Revelation 19:16, the returning King Jesus has a name written "on his robe and on his thigh" — KING OF KINGS AND LORD OF LORDS. This striking imagery combines royal proclamation with the ancient covenant oath tradition: His name on His thigh suggests the unbreakable, oath-bound authority of the Sovereign King. Jacob's wounded thigh (Genesis 32:25) taught him that divine encounter produces both blessing and permanent vulnerability — a limping worship that acknowledges God's supremacy. The weakness becomes the mark of grace.