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25 points
DIACHRONICALLY is validvalid
in a diachronic manner [adv]
DIACHRONIC, of the study of a subject (esp. a language) through its historical development, as opposed to synchronic [adv]
in a diachronic manner [adv]
DIACHRONIC, of the study of a subject (esp. a language) through its historical development, as opposed to synchronic [adv]