obtidas
Obtidas is the feminine plural form of the past participle obtido, derived from the verb obter, which means to obtain or acquire. In Portuguese, obtidas is used as an adjective or in passive constructions to describe feminine plural nouns, conveying the idea that something has been obtained or acquired. For example, informações obtidas refers to information that has been obtained, and fontes obtidas to sources that have been acquired. When used as a past participle in compound tenses with auxiliary verbs such as ter or haver, the form of the participle can vary according to the syntactic function: in a passive construction with ser, or when the participle directly accompanies a feminine noun, it agrees in gender and number (informações obtidas). With finite perfect tenses built with ter or haver, the participle generally follows the usual agreement rules and may appear in masculine or feminine forms depending on the subject and object structure.
Etymology and cognates: obtidas comes from obter, which traces to Latin obtinēre or a related form meaning
Usage notes: Obtidas is common in formal or written Portuguese, particularly in scientific, legal, or journalistic
See also: obter, obtido, informações obtidas, dados obtidos.