This root form (lemma) is used in 1 different forms in the NT: μάτην (···).
It is glossed in 1 way: ‘uselessly’.
OET MARK 7:7 Greek word=μάτην (mataʸn) Morphology=··· English gloss=‘uselessly’ SR GNT MARK 7:7 word 1
OET MAT 15:9 Greek word=μάτην (mataʸn) Morphology=··· English gloss=‘uselessly’ SR GNT MAT 15:9 word 1