An Etymological Dictionary of Astronomy and Astrophysics

1a) The Southern Cross, → Crux.

1b) A figure or pattern formed by the intersection of two lines.

2a) (adj.) Involving interchange; reciprocal.

2b) Lying or passing crosswise; intersecting.

3. To move or go across (something); traverse or intersect.

Etymology (EN): M.E. cros, from O.E., probably from Old Norse kross, from O.Ir. cros, from L. crux “stake, cross.”

Etymology (PE): Calipâ, loanword from Aramaic.
Xâj loanword from Arm.
Gozaštan, Mid.Pers. vitartan “to pass,” Sogdian wytr “to go,” O.Pers./Av. vitar- “to put across,” from prefix vi- “away, apart,” + tar- “to cross over” (Skt. tr- “to cross over,” tarati “crosses,” cf. Av. taro, Skt. tirah “through, beyond,” L. trans “beyond,” Ger. durch, E. through; PIE base *tr- “through”).