the quality or state of being junior, as in age or rank
juniority in American English
(dʒuːnˈjɔrɪti, -ˈjɑr-)
noun
the state or fact of being junior in age, rank, standing, etc
Word origin
[1590–1600; junior + -ity]This word is first recorded in the period 1590–1600. Other words that entered Englishat around the same time include: attack, dummy, squeeze, tea, tube-ity is a suffix used to form abstract nouns expressing state or condition. Other wordsthat use the affix -ity include: Latinity, civility, jollity