1. Being or happening first in sequence of time; original. 2. Primary or fundamental: play a primordial role.3.Biology Belonging to or characteristic of the earliest stage of development of an organism or a part: primordial cells.
NOUN:
A basic principle.
ETYMOLOGY:
Middle English, from Late Latin prmrdilis, from Latin prmrdium, origin : prmus, first; see per1 in Appendix I + rdr, to begin to weave; see ar- in Appendix I.