An Etymological Dictionary of Astronomy and Astrophysics

An inherited or common body of beliefs or practices belonging to a particular people, family, or institution over a relatively long period. Also their transmission over time.

Etymology (EN): M.E. tradicion, from  O.Fr. tradicion, from L. traditionem “delivery, surrender, a handing down,” from traditus, p.p. of tradere “to deliver, hand over,” from → trans- “over” (time) + dare  “to give,” → datum.

Etymology (PE): Tarâdâd, from tarâ- “over time,” → trans-, + dâd past stem of dâdan “to give,” → datum.