Английский Этимологический словарь - kind (adj.)

- "friendly," from O.E. gecynde "natural, native, innate," originally "with the feeling of relatives for each other," from P.Gmc. *gakundiz, from *kunjam, with collective prefix *ga- and abstract suffix *-iz. Sense development from "with natural feelings," to "well-disposed," to "benign, compassionate" (14c.).