suffixing

Verb

suffix (third-person singular simple present suffixes, present participle suffixing, simple past and past participle suffixed)

1. (transitive) To append (something) to the end of something else.
   • [...] by suffixing the ending -or to collaborat-, the stem of collaboratus, pp. of collaborare, to work together with.1882, An Etymological Dictionary of the English Language, page 121
2. (transitive) To cause (something) to be appended with something else at its end.
   • [...] by suffixing the verb with the gerundive suffix [...]2013, Case, Scope, and Binding, page 53
3. (intransitive) To treat or use as a suffix.

See all 6 meanings of suffix