| 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. |
| -ist suff.
[Middle English -iste, from Old French, from Latin -istēs, -ista, from Greek -istēs, agent n. suff.] |