predominant (adj.)

1570s, "ruling; controlling; exerting power, authority, or influence," from French prédominant (14c.), from Medieval Latin *praedominantem (nominative praedominans), present participle of *praedominare, from Latin prae "before" (see pre-) + dominari "to rule, dominate, to govern," from dominus "lord, master," from domus "house" (from PIE root *dem- "house, household"). Weakened sense of "more frequent, prevalent" is from c. 1600. Related: Predominantly.