köken: From Middle High German mitte, from Old High German mitti, from Proto-Germanic *midjǭ (“centre”), *midją, from *midjaz, ultimately from Proto-Indo-European *medʰyo-. Cognate to Old Norse miðja and Old English midde, midd (English mid).
köken: From Old Galician-Portuguese meio, meo, from Latin medius, from Proto-Italic *meðios, from Proto-Indo-European *médʰyos (“between”). Compare the borrowed doublets médio and médium. Sense of "way" or "mean" from Latin medium.
aile: meia de leite, meia hora, meia-noite, meia-volta, meio milhão, meio-dia