An Etymological Dictionary of Astronomy and Astrophysics

The marks, signs, smells, etc., that are left behind by someone or something and that can often be followed (Webster). → star trail.

Etymology (EN): M.E. trailen “to draw or drag in the rear,” from O.Fr. trailler “to tow,” ultimately from L. tragula “dragnet,” probably related to trahere “to pull.”

Etymology (PE): Radd, variant of raj, râž, rak, râk, rezg (Lori), radé, râdé “line, rule, row,” rasté, râsté “row, a market with regular ranges of shops;” ris, risé “straight,” related to râst “right, true; just, upright, straight;” → system.