effront
To give self-confidence to.
obsolete
I am naturally bashful; nor hath conversation, age, or travel, been able to effront, or enhardem me.
Where it comes from
From Middle French effronter, from Old French esfronter, from Late Latin effrontō, from the prefix ex- (“from”) + frōns (“forehead”).
Adapted from the Wiktionary entry effront (CC BY-SA 4.0).