出典:Wiktionary
出典:『Wiktionary』 (2026/01/16 03:35 UTC 版)
Uncertain. Perhaps from Proto-Indo-European *gʷʰrendʰ- (“to crush; gnash”), cognate with Proto-Germanic *grindaną (“to grind”). Another plausible cognate is Lithuanian grę́sti (“to plane, scour”), but this requires an alternative root ending in *-d-.
Sihler considers the development of *gʷʰr- to Latin fr- in this word surprising since a labiovelar consonant was generally delabialized in Latin when followed by another consonant (e.g. *gʷréh₂us > gravis). However, Sihler notes that the cluster *-gʷʰr- also retained its labialization in medial position, judging by the form of Latin febris from *dʰegʷʰ-. A separate cause of doubt is that *gʰ- seems to have developed into a voiced stop g- in word-initial position before r or l in some Latin words, such as glaber. However, examples such as glaber are rare, and their precise cause is disputed. Weiss 2018 argues that the g- in glaber was caused by a process of aspirate dissimilation that can be dated after a change from *-ndʰ- to *-nd- in Proto-Italic: this chronology would prevent dissimilation from applying to the root *gʷʰrendʰ-.
frendō (present infinitive frendere, perfect active frenduī, supine frēsum or fressum); third conjugation