quadratic

The story

1. Proto-Indo-European · derived from*kʷetwóres“four”
2. Latin · derived fromquadrātus
3. French · borrowed fromquadratique
4. English todayquadratic

From French quadratique (1765), from Latin quadrātus + -ique (English -ic), form of quadrō (“to make square”), from quādrus (“square”), ultimately from Proto-Indo-European *kʷetwóres (“four”), whence also Latin quartus (“fourth”).

Words from the same roots