extro-

The story

1. Latin · derived fromintro-“inwards”
2. Latin · derived fromextra-“outside, beyond”
3. English todayextro-

Pseudo-Latinism, based upon Latin extra- (“outside, beyond”) under the influence of the distinction between Latin intro- (“inwards”) and intra- (“inside, within”). Formations in English are mostly limited to words formed as antonyms of terms formed with intro-.

Words from the same roots