Bulbapedia suggests it's from "ability" (Ana-bel-ity?) It makes sense considering her psychic abilities and the fact she, y'know, hands out the Ability Symbol. Her expression is so calm and content here. Quite nice.
Poliwag said: Bulbapedia suggests it's from "ability" (Ana-bel-ity?) It makes sense considering her psychic abilities and the fact she, y'know, hands out the Ability Symbol.
Well, there's that. Or perhaps maybe Anabel is also for Annabelle shortened to fit the "7 character for character names" imposed by the games?