Qui est le plus important, essentiel.
ETYM Late Lat. primalis, from Latin primus the first. Related to Prime.
First; primary; original; chief.
ETYM Latin primaevus; primus first + aevum age. Related to Prime, and Age.
Belonging to the first ages; pristine; original; primitive; primary.
ETYM Latin primordialis, from primordium the first beginning; primus first + ordiri to begin a web, to begin: cf. French primordial.
1. First in order; primary; original; of earliest origin.
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2. (Geology) Of or pertaining to the lowest beds of the Silurian age, corresponding to the Acadian and Potsdam periods in American geology. It is called also Cambrian, and by many geologists is separated from the Silurian.
3. Originally or earliest formed in the growth of an individual or organ.
4. Pertaining to, or having existed from, beginning; in original form; first; primary.