pretentious

The story

1. Latin · derived frompraetēnsus“false or hypocritical profession”
2. French · derived fromprétentieux
3. English todaypretentious

From French prétentieux, from prétention, from Latin praetēnsus (“false or hypocritical profession”), past participle of praetendō. Note that pretentious is spelled with a ‘t’, unlike related pretense, pretension. This is due to the French spelling: *-sious does not occur as an English suffix, though -sion and -tion both do.