arity of a [[function]]: number of arguments
in [[linguistic]]s: called [[valence]]
*semantic* valence of an activity:
number of participants on [[discourse|discourse stage]].
e.g. to [[eat]]: two participants: eater and eaten
vs [[syntax]]tic / grammatical valence of the [[verb]]:
number of [[form|formal]] arguments
- eat: 1 (I eat) or 2 (I eat the apple)
- "univalent" / *intransitive* activity if just one participant
- "divalent" / *transitive*
- "trivalent" / *bitransitive*
![[valence adjusting operations.png]]
important to distinguish from [[zero pronoun]]
how to *adjust* valence of clause / [[predicate]]?
- increasing: bringing side actor to center stage
- decreasing: downplay center-stage participant to peripheral status or eliminating from scene
kinds of participants (see [[grammatical role]]):
- controllers: agent(-like)s
- affected: patient-like
- recipients, instruments, benefactees
![[valence and predicate calculus.png]]
# typology
most [[human language]]s mark valence:
84% of languages: valence expressed by [[derivation]];
6% [[inflect]]ion
(Bybee 1985)
- even more than [[tense aspect mood|tam]] or subject agreement (though these are more common [[inflect]]ional operations)
- Eg morphological reflexives: better categorized as inflectional (see 8.2.1)
[[morpheme]]s indicating valence adjustment often appear in different areas than [[tense aspect mood|tam]] indicators
- eg [[Panare]]: tam exclusively suffixal; valence decreasing prefixal:
![[Panare I sat down.png]]
amaika - semantically transitive: to put/to store/to keep;
s- = detrans --\> to sit
eg [[Yagua]]: both tam and valence suffixal, but always closer to verb root
![[Yagua valence.png]]
- Tend to come from free verb roots that were earlier [[periphrastic]] constructions
- sometimes from inflectional operators eg participant reference forms (pronouns or anaphoric clitics)
- Passive voice and perfect aspect markers are often related synchronically/etymologically (see 9.3)
# sources
[[1997PayneDescribingMorphosyntaxGuide|Describing morphosyntax]] ch 8
https://en.wikipedia.org/wiki/Arity