From L. inferior "lower," comp. form of inferus (adj.) "that is below or beneath," from infra "below" (→ infrared), cognate with Pers. zir, as below.
Zirin, adj. from zir "below, down," Mid.Pers. azêr "below, under," êr "below, down; low, under," adar "low;" Av. aδara- (adj.), aδairi- (prep.) "below;" cf. Skt. ádhara- "lower;" L. infra (adv., prep.) "below, underneath, beneath," inferus "lower;" O.E. under "under, among"); PIE base *ndher.
Fr.: conjonction inférieure
The conjunction of an inferior planet with the Sun when the planet is between the Sun and the Earth. → superior conjunction.
Fr.: culmination inférieure
sayyâre-ye zirin (#)
Fr.: planète inférieure
A planet that orbits between the Earth and the Sun. Mercury and Venus are the only two inferior planets in the Solar System.