Answers for the 4th seminar Word formation in Modern English

8.Classifications of suffixes based on origin, structure and semantics of suffixes.
There are different classifications of suffixes in linguistic literature, as suffixes may be divided into several groups according to different principles:
1)The first principle of classification that, one might say, suggests itself is the part of speech formed. Within the scope of the part-of-speech classification suffixes naturally fall into several groups such as: noun-suffixes, i.e. those forming or occurring in nouns, e.g. -er, -dom, -ness, -ation, etc.
2)Suffixes may also be classified into various groups according to the lexico-grammatical character of the base the affix is usually added to. Proceeding from this principle one may divide suffixes into: deverbal suffixes (those added to the verbal base), e.g. -er, -ing, -ment, -able, etc. (speaker, reading, agreement, suitable, etc.);
3)A classification of suffixes may also be based on the criterion of sense expressed by a set of suffixes. Proceeding from this principle suffixes are classified into various groups within the bounds of a certain part of speech.
4)Still another classification of suffixes may be worked out if one examines them from the angle of stylistic reference. Just like prefixes, suffixes are also characterized by quite a definite stylistic reference falling into two basic classes: those characterized by neutral stylistic reference such as -able, -er, -ing, etc.