This root form (lemma) is used in 2 different forms in the NT: ὀγδοήκοντα (amp), ὀγδοήκοντα (gnp).
It is glossed in 1 way: ‘eighty’.
OET LUKE 2:37 Greek word=ὀγδοήκοντα (ogdoaʸkonta) Morphology=gnp English gloss=‘eighty’ SR GNT LUKE 2:37 word 9
OET LUKE 16:7 Greek word=ὀγδοήκοντα (ogdoaʸkonta) Morphology=amp English gloss=‘eighty’ SR GNT LUKE 16:7 word 29