1. (n.) Beginning; commencement; initiation\.

2. (n.) Reception; a taking in.

babyhood beginning beginnings birth childhood commencement conception constitution cradle derivation effectuation establishment formation foundation fountain freshman year genesis grass roots head inauguration inchoation incipience incipiency incunabula infancy installation institution materialization nascence nascency nativity organization origin original origination parturition pregnancy provenance provenience radical radix realization rise root setting-up source stem stock taproot well wellspring whence youth