MORPHOPHONEMIC AND STRUCTURAL PATTERNS IN THE KAMBERA NUMERAL SYSTEM

Abstract

Numeral systems constitute an important component of linguistic structure because they encode not only quantitative meaning but also grammatical organization, morphophonemic processes, and language change. Cross-linguistically, numeral systems often preserve conservative features while remaining sensitive to internal restructuring and language contact. This study investigates the numeral system of Kambera, an Austronesian language spoken in East Sumba, East Nusa Tenggara, Indonesia, with the aim of describing its structural organization, identifying morphophonemic patterns, and examining possible contact-induced influences.

This research adopts a qualitative descriptive approach. Data were collected through structured and semi-structured interviews with native speakers of Kambera in Kambera District, East Sumba Regency. Structured elicitation was used to document numeral forms from units to millions, followed by in-depth interviews with key informants to validate the data and explain structural variation. The findings show that Kambera employs a decimal (base-10) numeral system in which basic numerals are lexicalized and higher numerals are systematically formed through additive constructions. Structurally, the numeral system is predominantly characterized by an [n base] pattern, in which the unit numeral precedes the numerical base, while the [base n] pattern is restricted to the teen numerals (11–19). This distribution indicates a mixed structural system across different numerical domains. Larger numerals are consistently organized in a hierarchical left-branching structure, with higher-value elements preceding lower-value elements, demonstrating that numeral formation follows regular compositional principles rather than arbitrary lexical combinations.

The study also reveals systematic morphophonemic alternations. The numeral ‘hau’ (one) undergoes monophthongization when combined with higher numerical bases, producing contracted forms such as ‘hangahu’ (one hundred) and ‘harata’ (one thousand). This process simplifies pronunciation while preserving morphological structure. In addition, the independent form ‘hambullu’ (ten) surfaces as ‘kambullu’ in compound numerals, reflecting context-dependent morphophonemic restructuring associated with numeral compounding. Comparison with earlier descriptions by Klamer further suggests that these forms represent ongoing historical developments within the Kambera numeral system rather than isolated phonological changes. The study also identifies lexical variation involving the numeral forms ‘dua’ and ‘dambu’ (two). The findings show that ‘dua’ is predominantly used in the tens, hundreds, and thousands (e.g., ‘dua kambullu’, ‘dua ngahu’, ‘dua harata’), whereas ‘dambu’ is retained in the unit domain and in certain higher expressions such as ‘dambu njuta’ (two million). Rather than indicating straightforward lexical replacement, this distribution reflects functional differentiation within the numeral system.