Gad

Gödih innovation, based on Ar. gadd "grandfather" and Hebr. gādôl "large, big, great, grand, high, mighty". See also haw, zaḩ and taj.
 

gad grand; grandfather (Ar. gadd); a person between 48 and 72 years old; _on = _ of _ (grand dozen = 144, grand heap = 3600 = sar, grand hundred = 10000 = myriad, million = grand thousand)

gadat grandmother (Ar. gaddat); a woman between 48 and 72 years old)