care: [OE] Care goes back ultimately to a prehistoric Indo-European *gar-, source of a wide range of words in other Indo-European languages, two of which, garrulous and slogan, have also reached English. In the case of care, the route was via Germanic *karō, which reached Old English as caru. The related adjective from the same source is chary [OE], which originally meant ‘sad’. => chary, garrulous, slogan