Wurdahuzdą: Proto-Germanic dictionary — *-izScott K. ShayWardja Presshttps://protogermanic.org/pgmc_iz_1
Single-entry extract from the dictionary. Cross-references to other entries point to their identifiers in the full dictionary.
A Comparative Grammar of the Early Germanic LanguagesRobert D.FulkJohn Benjamins Publishing Company2018*-yos- ~ *-is-derives adjectives meaning ‘exceptionally X’magismore
suffixadverbforms comparative adverbs, equivalent to English “-er” or ‘more’, with the sense ‘more X, X-er, rather X’From Proto-Indo-European *-is-, the zero-grade of the inherited comparative/elative suffix *-yos- ~ *-is-. In adverbs it was uninflected. Compare Latin magis, which preserves the same inherited adverbial use of the suffix. There is also a similar, parallel comparative adverbial suffix in Proto-Germanic, *-ōz. PGmc *-iz was used with adverbs derived from i-, u-, and ja-stem adjectives, while *-ōz was used primarily with adverbs derived from a/ō-stem adjectives. But note that the distribution of these suffixes in adverbs based on a/ō-stem adjectives was both lexical and analogical and not completely predictable Fulk 2018: 218–20.