osion
Osion is not a standalone English word. It is the sequence of letters "osion" that appears at the end of a small number of nouns formed from verb stems through the Latin-derived suffix -sio(n). In linguistic discussion, osion is sometimes noted as a recognizable orthographic ending rather than as a morphologically productive unit in contemporary English.
Etymology and morphology: The suffix -sion (from Latin -sio, via Old French -sion) commonly creates nouns that
Examples and usage: The most familiar English words ending in osion are erosion and explosion. These illustrate
See also: -sion suffix, -tion, English morphology, Etymology of English noun-forming suffixes.