English Alternative forms ornith- Etymology From Ancient Greek ὄρνιθ- (órnith-), the stem of ὄρνις (órnis, “bird”). Prefix ornitho- of or pertaining to birds Synonym: avi- Derived terms English terms prefixed with ornitho- Related terms -ornis Translations of or pertaining to birds French: ornitho- (fr) Galician: ornito- (gl) Italian: ornito- Polish: ornito- (pl) Portuguese: ornito- Romanian: ornito- Russian: орнито- (ornito-) Spanish: ornito- Swedish: ornito- Anagrams hornitoWikiwand - on Seamless Wikipedia browsing. On steroids.