familiarizaste
Familiarizaste is the second-person singular preterite (simple past) form of the Spanish verb familiarizar, used with the subject tú. It belongs to the indicative mood in the active voice and expresses a completed action in the past. In its non-reflexive use, familiarizaste typically means you made someone or something familiar with a subject, procedure, or set of information, as in familiarizaste a los estudiantes con las reglas.
When the action is reflexive, the corresponding form is te familiarizaste, from the verb familiarizarse. This
Usage notes: as a transitive verb, familiarizar without the reflexive pronoun often takes a direct object or
Etymology: familiarizar derives from familiar, related to familiarity or family-related notions, with the Spanish suffix -izar
See also: familiarizar, familiarizarse, conjugation of Spanish verbs in the preterite.