tildar

to declare or brand as; to stigmatize; to put a tilde or other accent mark over; (informal) hang (of a computer, to stop working); (informal) to go into a trance, a stupor

“En las prácticas religiosas era D. Ángel intachable. No se le podía tildar ni de flaqueza ni de exceso de celo.”

From metathesis of Late Latin titulāre, a verb based on Latin titulus. Alternatively formed in Spanish based on tilde. In either case, likely semi-learned or an early borrowing, considering the /i/ for Latin /ĭ/. Doublet of titular.