1º_ Prefix that means "domestic, own place to inhabit" . From the Greek 959; 953; 954; 959; 962; ( oikos "home") . 2º_ By the previous one a common prefix was made to combine with everything ecological. 3º_ Prefix that means "reflection of a wave" . Although it comes to Spanish from the Latin echo, us ("reflection of a sound"), it has Greek origin by 8206; 951; 967; 969; ( echoed ) .
