Synonyms of inception

1 Syllable
well, dawn, start, birth, root, rise
2 Syllables
wellspring, onset, threshold, fountain, rootstock, kickoff, outset, hornbook, outstart, wellhead, radix, start-off, jump-off, fountains, siring, leadoff, jumpoff, lead-in, source, leadin, intro, creation, creations
3 Syllables
exordium, radicle, rhizome, origins, radixes, causation, infancy, beginning, origin, radices, geneses, nascency, causations, genesis, nascence
4 Syllables
introduction, causality, provenience, inaugural, commencement, instatement, initiations, provenance, curtain-raiser, causalities, derivations, incipiency, derivation, introductions, initiation, pupilage, incipience
5 Syllables
investiture, inauguration, incunabulum, interpolation, prolegomenon, interpolations