出典:Wiktionary
出典:『Wiktionary』 (2026/05/03 00:57 UTC 版)
Uncertain; the traditional view (supported by ancient grammarians) connects it with the Ancient Greek πόῤῥω (pórrhō), similar in form and meaning. However, the old form of this Greek word, πρόσω (prósō), would not easily align with the derivation of the Latin word. Moreover, adverbs are not usually borrowed from other languages. In all probability related to Proto-Indo-European *pro-.
De Vaan clarifies the archaic Praenestinian Latino-Faliscan POROD is not an ablative, and mentions a very tentative derivation, by Nussbaum, of Proto-Indo-European *pro- + an adverbial -s + the suffix -ō observed in Latin intrō, ultrō, contrōversia, effectively *prs-ō > *porsō > porrō.
porrō (not comparable)