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This article approaches defective and overabundant paradigm cells as an opportunity and pitfall for usage-based linguistics. Through reference to two production tasks involving native speakers of Czech, we show how definitions of these two categories are problematized when multiple forms per context are entrenched, or when pre-emption seems to occur in the absence of entrenchment: in other words, pre-emption occurs via entrenchment of uncertainty. We explain the results by adopting a broader, usage-based perspective. We examine the relationship between frequency (as proxy for exposure) and reference-work information (as proxy for a priori structure) to assess their connection with our experimental results. We assign a role to frequency as helping to form perceptions of "suitable" and "unsuitable" forms, but also note places where non-frequency factors predominate. "Structure" as represented by reference-work recommendations appears to have no significant connection to our experimental results; we discuss reasons for this. [ABSTRACT FROM AUTHOR]

The IE languages developed different strategies for the encoding of the passive function. In some language branches, the middle voice extended to the passive function to varying extents. In addition, dedicated derivational formations arose in a number of languages, such as the Greek -ē-/-thē- aorist and the Indo-Aryan -ya-presents. Periphrastic formations involving a verbal adjective or a participle are also widely attested, and played an important role in the building of the passive paradigm in e.g. Romance and Germanic languages. As the periphrastic passive is also attested in Hittite alongside passive use of the middle, both strategies seem to be equally ancient. Some minor strategies include lexical passives and the extensive lability of verbs. A survey of possible strategies provides evidence for the rise of a disparate number of morphemes and constructions, and for their ongoing incorporation into the inflectional paradigms (paradigmaticization) of given languages, thus adding to our knowledge about cross-linguistic sources of passive morphology and grammaticalization processes involved. [ABSTRACT FROM AUTHOR]

This paper explores the hypothesis that morphotactically ambiguous segment sequences should be dispreferred and selected against in the evolution of languages. We define morphotactically ambiguous sequences as sequences that can occur both within morphemes and across boundaries, such as final /nd/ or /mz/ in ModE, which occur in simple forms like wind or alms and in complex ones like sinned or seems. We test the hypothesis in two diachronic corpus studies of Middle and Early Modern English word forms ending in clusters of sonorants followed by /d/ or /t/ and /s/ or /z/. These clusters became highly frequent after the loss of unstressed vowels in final syllables and were highly ambiguous when they emerged. Our data show that the ambiguity of these final clusters was indeed reduced so that the distribution of the final clusters became increasingly skewed: clusters ending in voiceless coronals became significantly clearly indicative of simple forms, while clusters ending in voiced ones came to signal inflectional complexity more reliably. [ABSTRACT FROM AUTHOR]

The Papuan language Mian allows us to refine the typology of nominal classification. Mian has two candidate classification systems, differing completely in their formal realization but overlapping considerably in their semantics. To determine whether to analyse Mian as a single system or concurrent systems we adopt a canonical approach. Our criteria - orthogonality of the systems (we give a precise measure), semantic compositionality, morphosyntactic alignment, distribution across parts of speech, exponence, and interaction with other features - point mainly to an analysis as concurrent systems. We thus improve our analysis of Mian and make progress with the typology of nominal classification. [ABSTRACT FROM AUTHOR]

This article addresses the problem of crosslinguistic rarity by mapping the types of diachronic factors that contribute to the rarity of a particular feature. It is proposed that a number of different diachronic factors may play a role, such as the rarity of source constructions, the rarity of particular types of change, the number of stages necessary for a particular feature to develop, and the number of pathways that can lead to a particular feature. This article looks at a rarissimum of person marking, namely, a zero-marked feminine 2nd singular person index in the Sahidic dialect of Coptic (Afroasiatic; Egypt). It is argued that such markers are rare because they presuppose rare input structures, and most processes of change would lead away from - rather than to - zero-marked 2sg. Furthermore, this study identifies a diachronic process in which a part of a morpheme is reinterpreted as a segmentable morpheme (in this case, a person index), thereby leading to the loss of a zero person marker. This is the converse of the well-known 'Watkins' Law', in which a segmentable person marker is reinterpreted as part of a base. [ABSTRACT FROM AUTHOR]