pääteparilla
Pääteparilla is a term used in Finnish linguistics to describe a pair of closely related inflectional endings that realize the same grammatical category in different phonological or morphophonemic environments. The concept emphasizes that a single grammatical function can be expressed by two (or more) allomorphs rather than a single suffix, with the choice between them conditioned by factors such as vowel harmony, stem class, or consonant gradation.
In linguistic analysis, ending pairs are treated as a single functional unit that has multiple realizations.
Typical characteristics of a päätepari include: two suffix forms that convey the same grammatical meaning; predictable
Origin and usage: the term appears in Finnish linguistic literature as a convenient label for compactly describing