What is "lexical correspondence"

n. (context linguistics English) A set of cognate words or morphemes in two or more related languages, where regular sound correspondences occur between the phonemes contained in the words.

A lexical correspondence is a set of cognate words or morphemes in two or more related languages. In order to form such a correspondence, it is not sufficient that the words are similar in both form and meaning, but that regular sound correspondences occur between the phonemes contained in the words.