tertiary

tertiary · adjective, noun¹

1. Latin · borrowed fromtertiārius“of the third part or rank”
2. English todaytertiary

PIE word *tréyes Borrowed from the Latin tertiārius (“of the third part or rank”), from tertius (“third”) (from Proto-Indo-European *tr̥tyós, whence English third) + -ārius (whence the English suffix -ary); compare the French tertiaire. By surface analysis, terti- + -ary.

Tertiary · adjective, proper noun²

See tertiary.