aggeneration

noun3

1. •
   (rare) The act of producing in addition.

   • There haue beene..additions vnto this Church without substraction; continuall adgeneration without corruption. — 1627
2. •
   (rare) Growth or regeneration from grafting.
3. •
   (rare) Contribution to a race through reproduction.

   • The higher task is now ours of the regeneration of the race, or, if we wish to express that betterment less questionably, the aggeneration of the race. — 1912