Avis

Etymology
From Proto-Indo-European *awis.

Noun
avis (plural avisis)
 * 1) bird
 * 2) early bird
 * 3) (colloquially) penis

Derived words

 * avisdom (n), cage, jail (colloquially).
 * avisiz (v), to fly.
 * moravis (n), seagull.