Etymology
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seniority (n.)

mid-15c., seniorite, "priority in office or service," from Medieval Latin senioritas, from Latin senior "older" (from PIE root *sen- "old"). The Old French form was seignorite. Meaning "state or quality of being senior, priority of birth" is from 1530s. The university sense of "senior students collectively" is by 1670s.

updated on May 03, 2022

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