-ensis

Etymology
. Various theories have been put forward:
 * Hermann Gähwiler (1962), building on a suggestion by, proposes a borrowing from on the basis that its earliest attested non-toponymic use is in the term , and the Roman  was an Etruscan import. A similar suffix is attested in Etruscan patronymics.
 * Paavo Castrén (1981) rejects the relevance of ātriēnsis, viewing it as a later development. On the basis of various ancient, then-extinct peoples of with names in -ēnsēs mentioned by, Castrén situates the emergence of the suffix in the late , perhaps as a borrowing from another  language.
 * Chantal Kircher-Durand (1983) suggests a derivation from (<, ), but considers Gähwiler’s thesis plausible.
 * A. Zimmermann (1921) suggests a lost cognate of 🇨🇬, variant of (< ) +.

Suffix

 * 1) Of or from [a place].

Usage notes
The suffix -ēnsis is added to a toponym (especially the name of a town) or to a topographical name, in order to form an adjective.
 * Examples: