coexistido
Coexistido is the past participle of the verb coexistir in Portuguese and Spanish. In both languages it denotes that two or more entities have existed or lived together in a shared space, time, or set of conditions. It is primarily used in verbal tenses with auxiliary verbs, and less commonly as a past participial adjective.
Etymology and form: the term is built from the prefix co- meaning together, and existire/existir from Latin
Usage in Portuguese: as a verb participle in compound tenses, for example “As espécies têm coexistido há
Usage in Spanish: similarly, in perfect tenses one finds phrases like “Las especies han coexistido durante siglos.”
Comparison and alternatives: in both languages, coexistencia (coexistence) or coexistir (to coexist) are more common terms