Seniority
Origin
From Middle English senyoryte, from Medieval Latin senioritas, from Latin senior ("elder"); see senior.
Full definition of seniority
Noun
seniority
(countable and uncountable; plural senioritys)- A measure of the amount of time a person has been a member of an organization, as compared to other members, and with an eye towards awarding privileges to those who have been members longer.It's an old-fashioned company, with parking spaces and other perks doled out on the basis of seniority.