proboscis

The story

1. Ancient Greek · derived fromπροβοσκίς“elephant's trunk”
2. Latin · derived fromproboscis
3. English todayproboscis

From Latin proboscis, from Ancient Greek προβοσκίς (proboskís, “elephant's trunk”) literally "means for taking food," from προ- (pro-, “before”) + βόσκω (bóskō, “to nourish, feed”), from the Proto-Indo-European root *gʷeh₃- from which also comes βοτάνη (botánē, “grass, fodder”).