Is Age a Noun Suffix

Usually after an unstressed vowel, [j] is spelled <g>. Very often it is in the suffix -age, which forms nouns, usually (but not always) from verbs.

What is a noun suffix example?

Suffixes forming nounsMeaningExamples-eesomeone who does somethingaddressee, interviewee, referee, trainee, employee, refugee, trustee, lessee, retiree

Is ist a noun suffix?

a suffix of nouns, often corresponding to verbs ending in -ize or nouns ending in -ism, that denote a person who practices or is concerned with something, or holds certain principles, doctrines, etc.: apologist; dramatist; machinist; novelist; realist; socialist; Thomist. Compare -ism, -istic, -ize.