ὀνικός

pertaining to an ass

Definition

The adjective ὀνικός (onikos) means 'pertaining to an ass' or 'of a donkey.' It specifically describes something that belongs to or is characteristic of a donkey. In the New Testament, it is used only in the phrase 'μύλος ὀνικός' (mylos onikos), meaning 'a millstone of a donkey' or 'a large millstone turned by donkey power.' This phrase appears in two parallel teachings of Jesus about causing others to sin, found in Matthew 18:6 and Luke 17:2. The word itself does not carry multiple distinct senses; its meaning is consistently tied to the animal.

Biblical Usage

This word is used exclusively in the Gospels of Matthew and Luke, in identical contexts. It forms the compound phrase 'μύλος ὀνικός' (donkey millstone), which Jesus employs in a stark warning about the severe consequences for anyone who causes a 'little one' to stumble. The usage is metaphorical and hyperbolic, using a vivid image from daily life to emphasize the gravity of spiritual corruption. The pattern is consistent: it is part of a dire warning from Jesus about accountability.

Etymology

Derived directly from the Greek noun 'ὄνος' (onos, Strong's G3688), meaning 'a donkey' or 'ass.' The suffix '-ικός' (-ikos) is a common adjectival ending meaning 'pertaining to' or 'belonging to.' Therefore, ὀνικός is a straightforward formation meaning 'of or belonging to a donkey.' Its meaning is literal and did not undergo significant development.

Semantic Range

While the word itself is mundane, the phrase it creates is theologically significant. The 'donkey millstone' is a powerful metaphor in Jesus' teaching on sin, scandal, and judgment. It underscores the extreme seriousness with which God views leading others, especially the vulnerable ('little ones'), into sin. Understanding that this was the largest, heaviest type of millstone (as opposed to a smaller hand-mill) enriches the reading by highlighting the inescapable and catastrophic judgment Jesus describes for those who corrupt others.

In the ancient world, millstones were essential for grinding grain. A 'μύλος ὀνικός' was a large, upper millstone turned by donkey power in a commercial or communal setting, as opposed to smaller hand-mills used in homes. It was a familiar, heavy object. Jesus' listeners would immediately grasp the horrifying image of such a massive stone being hung around someone's neck and them being cast into the sea—a certain and heavy death. This cultural understanding amplifies the force of the warning.

ὄνος (onos, G3688) — The root noun meaning 'donkey' or 'ass,' whereas ὀνικός is the adjective describing something pertaining to it.

Word Details

Scripture References