embasar

Etymology

From em- +‎ base (“base; basis”) +‎ -ar.

Verb

embasar (first-person singular present indicative embaso, past participle embasado)

1. (transitive, architecture) to build (a building’s) foundation
2. (ditransitive, with the indirect object taking em) to base on (to use something as a basis for (an opinion, idea or procedure))

   Ele baseou a teoria nas suas observações.

   He based the theory on his observations.