tábhyas

saptán

instr. - tábhis;
dat. abl. - tábhyas;
gen. -tānā́m loc. - tásu) seven (a favourite number with the Hindūs, andﾠ regarded as sacred, often used to express an indefinite plurality <in the same manner as « three», by which it is sometimes multiplied>;
hence 7 Mātṛis, 7 streams, 7 oceans, 7 cities RV. I, 63, 7, 7 divisions of the world, 7 ranges of mountains, 7 Ṛishis, 7 Vipras
RV. I, 62, 4, 7 Ādityas, 7 Dānavas, 7 horses of the. Sun, 7 flames of fire, 7 Yonis of fire, 7 steps round the fire at marriage, 7 Samidhs, 7 tones, 7 sacrificial rites, 7 Maryādās, thrice 7 Padāni orﾠ mystical steps to heaven
RV. I, 72, 6, thrice 7 cows etc.) RV. etc. etc.
+ cf. Zend hapta;
Gk. ἑπτά;
Lat. septem;
Lith. septynī;
Slav. sedmǐ;
Goth. sibun;
Germ. sieben;
Eng. seven