An Etymological Dictionary of Astronomy and Astrophysics

The → erosion of a surface through a process such as → vaporization or → friction.

Etymology (EN): L. ablatio, ablation, from ablatus, from ab- “away” + latus “carried.”

Etymology (PE): Farsâb from far-, prefix denoting “abundance, excess” + sâb present stem of sâbidan “to rub, wear out,” variants sâyidan,
pasâvidan “to touch,” Khotanese sauy- “to rub,” Sogdian ps’w- “to touch,” Proto-Iranian *sau- “to rub.”