rarissimum 32: plural marking of a small subset of nouns (persons, kin) by lengthening of the vowel of the antepenultimate syllable, not a salient structural position otherwise (e.g., stress is on long vowels, otherwise on the penult)
Where found
Hawaiian, Samoan (Polynesian, Austronesian)
Domain
morphology: inflection
Subdomain
types of exponents and their uses
Keywords
number, plural, vowel lengthening
Type
rarissimum
Universals violated
none
Source
Elbert, Samuel H. & Mary Kawena Pukui (1977). Hawaiian Grammar. Honolulu: University of Hawaii Press; p. 106
e.g., Hawaiian ka.NA.ka ‘person’ – KAA.NA.ka ‘people’
(with two stresses in plural, main on penult and secondary on lengthened antepenult).