kũingĩhia

v.

1. increase, multiply. Increase, multiply. To cause an increase in quantity or number, especially referring to crop yields, fruit production, or plant propagation in agricultural contexts.

Example: Nĩyo hitho yayo ya kũingĩhia maciaro. (It's like their secret sauce for a bountiful harvest.); Nĩwega kũmenya atĩ wũingĩ wa mahuti tikuo kũingĩhia matunda. (Remember, more leaves don't mean more fruit); Mĩembe ĩngĩtungatwo wega no ĩgĩe na magetha mega na kũingĩhia umithio. (Proper management activities of the mango orchard can lead to good quality harvests, hence more income.)