docto

learned, erudite

“Tuvo muchas veces competencia con el cura de su lugar —que era hombre docto, graduado en Cigüenza— sobre cuál había sido mejor caballero: Palmerín de Ingalaterra o Amadís de Gaula.” — Many an argument did he have with the curate of his village (a learned man, and a graduate of Sigüenza) as to which had been the better knight, Palmerin of England or Amadis of Gaul.

Borrowed from Latin doctus, perfect passive participle of doceō (“to teach, to instruct”). Compare the inherited doublet ducho.