Affixes and word formation

Attachment and position

A prefix precedes its base, a suffix follows it, an infix interrupts a morpheme, and a circumfix has material on both sides of a base. Position is a description, not an explanation of function: a suffix may create a new lexeme or express an inflectional category. For a proposed infix, the inserted material must occur within another morpheme rather than merely in the middle of a written word. Identify the base by comparing forms, not by visually stripping an apparent affix.

The Essentials of Linguistics discussion cites Tagalog -um- after the first consonant of a base, with takbuh “run” and tumakbuh “ran” among its examples. The contrast makes the internal position visible. Its source gives a particular phonetic transcription and gloss; keep those conventions when reusing it.

Compounds

A compound combines more than one lexical root. It differs from a phrase by language-specific evidence such as stress, inflection, fixed order, distribution or conventional meaning. English doghouse is a familiar example, but a space in an ancient inscription cannot settle whether the corresponding expression was a compound. In a corpus, compare similar formations and consult the grammar’s stated criteria.

A derived word can itself enter a compound, and a compound can be inflected. Build an analysis as nested structure rather than a flat string of labels. Ask which operation applied to which base. If two bracketings are possible, test each against meaning and distribution.

Clitics and separate words

A clitic is dependent on a host in some phonological or positional sense but does not necessarily behave like an affix on one lexical base. The boundary between clitic and affix is not settled by typography. Test whether the element selects a phrase or a single word, whether it can attach to different lexical categories, and whether it participates in word-level sound processes. Historical spelling may supply only partial evidence; label the conclusion accordingly.

Practice

For an attested form, draw two possible trees. Identify each root and operation, and explain which sequence of operations the meaning and distribution favor. If a source offers only one token and no comparable formations, report the uncertainty rather than inventing a complete derivational rule.