ῤάκος, ῤάκους, τό (ῤήγνυμι, a piece torn off; specifically, a bit of cloth; cloth: Matthew 9:16; Mark 2:21 (here L Tr marginal reading ῥακκος). (Homer, Herodotus, Aristophanes, Sophocles, Euripides, Josephus, the Sept., others.)
Matthew 9:16 - N-GNS GRK:ἐπιβάλλει ἐπίβλημα ῥάκους ἀγνάφου ἐπὶ NAS: of unshrunk cloth on an old KJV: a piece of new cloth unto an old INT: puts a piece of cloth unshrunk on
Mark 2:21 - N-GNS GRK:οὐδεὶς ἐπίβλημα ῥάκους ἀγνάφου ἐπιράπτει NAS: of unshrunk cloth on an old KJV: a piece of new cloth on an old INT: no one a piece of cloth unshrunk sews