ὀνικὸς onikos — 2 Occurrences
Matthew 18:6 - Adj-NMS
GRK:κρεμασθῇ μύλος ὀνικὸς περὶ τὸν
NAS: it would be better for him to have a heavy millstone
INT: should be hung a millstone heavy upon the
Mark 9:42 - Adj-NMS
GRK:περίκειται μύλος ὀνικὸς περὶ τὸν
NAS: for him if, with a heavy millstone
INT: is put a millstone heavy about the