The English word "translation" derives from the Latin translatio (which itself comes from trans- and from fero, the supine form of which is latum—together meaning "a carrying across" or "a bringing across"). The modern Romance languages use equivalents of the English term "translation" that are derived from that same Latin source or from the alternative Latin traducere ("to lead across" or "to bring across"). The Slavic and Germanic languages (except in the case of the Dutch equivalent, "vertaling"—a "re-language-ing") likewise use calques of these Latin sources. 

Despite occasional theoretical diversity, the actual practice of translation has hardly changed since antiquity. Except for some extreme metaphrasers in the early Christian period and the Middle Ages, and adapters in various periods (especially pre-Classical Rome, and the 18th century), translators have generally shown prudent flexibility in seeking equivalents — "literal" where possible, paraphrastic where necessary — for the original meaning and other crucial "values" (e.g., style, verse form, concordance with musical accompaniment or, in films, with speech articulatory movements) as determined from context.
Do they favor authentic or generalized translating?
literal" where possible, paraphrastic where necessary