To depend upon, basically, ultimately or in essence.(verb)
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Use "come down to" in a sentence
"Although St. Remigius's influence over people and prelates was extraordinary, yet upon one occasion, the history of which has come down to us, his course of action was attacked."
"The world championship of 1981 had come down to Stuey and Perry Green, with Green holding a slight advantage, $420,000 to $330,000."
"The testimony of reliable witnesses and the numerous ex-votos that have come down to us from antiquity leave no doubt as to the reality of many of these cures."