Proto Root Word - Giving rise to protoplanet 2 : See scrabble, words with friends, wordhub and other word. Parent substance of a (specified) substance. First in time protohistory b : A combining form meaning “first,” “foremost,” “earliest form of,” used in the formation of compound words (. Web find 367 words containing proto, a word that can be a root or a prefix.
Web find 367 words containing proto, a word that can be a root or a prefix. See scrabble, words with friends, wordhub and other word. First in time protohistory b : Giving rise to protoplanet 2 : Parent substance of a (specified) substance. A combining form meaning “first,” “foremost,” “earliest form of,” used in the formation of compound words (.