From altum, supine of alō (“grow”). Corresponds to Proto-Italic *altos, from Proto-Indo-European *h₂eltós, a suffixed form of the root *h₂el- (“grow, nourish”) (compare Proto-Germanic *aldaz, whence English old and world).
Practica a expresión oral e a memorización de " altus " e moitas outras palabras e frases latín .