WordofTheDay.US

proto

adjective

adjective Definition from WordNet 3.1, Princeton University. More about proto at Wordnik → Where our words come from →

  1. Indicating the first or earliest or original.
    `proto' is a combining form in a word like `protolanguage' that refers to the hypothetical ancestor of another language or group of languages

Origin

From the prefix proto-.

From Wiktionary, via Kaikki.org (CC BY-SA)