An Etymological Dictionary of Astronomy and Astrophysics

The act or process of converting; state of being converted. → convert.

Etymology (EN): Verbal noun of → convert.

Etymology (PE): Hâgard, from hâ- prefix denoting “reversal; to,” sometimes creating nuance [Dehxodâ], + gard present stem of gardidan, gaštan
“to change; to turn;” Mid.Pers. vartitan;
Av. varət- “to turn, revolve;” cf. Skt. vrt- “to turn, roll,” vartate “it turns round, rolls;” L. vertere “to turn;” O.H.G. werden “to become;” PIE base *wer- “to turn, bend.”