R-B-H – ‘progagation, augmentation of life’

R-B – ‘propagation, increase’

The sign of movement proper, united to that of interior activity, or by contraction with the root אב, image of all fructification, constitutes a root whence are developed all ideas of multiplication, augmentation, growth, grandeur: it is a kind of movement toward propagation, physically as well as morally. (The Hebraic Tongue Restored, Fabré d’Olivet, p. 447)