| a suffix forming adjectives and nouns from verbs, occurring originally in French and Latin loanwords (pleasant; constant; servant) and productive in English on this model; -ant has the general sense “characterized by or serving in the capacity of” that named by the stem (ascendant; pretendant), esp. in the formation of nouns denoting human agents in legal actions or other formal procedures (tenant; defendant; applicant; contestant). In technical and commercial coinages, -ant is a suffix of nouns denoting impersonal physical agents (propellant; lubricant; deodorant). In general, -ant can be added only to bases of Latin origin, with a very few exceptions, as coolant. |
| -ant suff.
[Middle English, from Old French, from Latin -āns, -ant-, present participle suff. of verbs in -āre.] |
