Late 19th century; earliest use found in Proceedings of the American Philosophical Society. From classical Latin pont-, pōns bridge + -ile. Compare post-classical Latin pontile bridge-like structure.
Definition of pontile in US English:
pontile
adjectiveˈpɒntʌɪl
Anatomy Medicine rare
Pontine.
Origin
Late 19th century; earliest use found in Proceedings of the American Philosophical Society. From classical Latin pont-, pōns bridge + -ile. Compare post-classical Latin pontile bridge-like structure.