Fusional language

A fusional language is a type of polysynthetic language, distinguished from agglutinative languages by its use of fewer morphemes for inflection or by its tendency to "squish together" many morphemes in a way which can be difficult to decode.

The canonical examples of fusional languages are Latin and German. Most European languages are relatively fusional. Esperanto, which is an artificial language based on many European languages, is a particularly clean and simple example of a fusional language.

A good illustration of fusionality in language is the Latin word amo, "I love". The ending -o denotes indicative mode, first person, singular, present tense. Changing any of these features requires replacement of the suffix -o with something else.