πεντήκοντα, οἱ, αἱ, τά,
indeclinable, fifty, [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 2.509, etc.] Refs 8th c.BC+]: Boeotian dialect πεντείκοντα [[ 6th c.BC: Corinna Lyrica “Supp.” 2.67: _genitive_ _plural_ πεντηκόντων “Schwyzer” 688 D 7 (Chios, 5th c.BC). ] Refs 6th c.BC+]