grace: [12] Latin grātus meant ‘pleasing’. Its most obvious English descendants are grateful, gratify, gratuity, etc, but it is also responsible for grace (not to mention the even better disguised agree). Its derived noun grātia ‘pleasure, favour, thanks’ passed into English via Old French grace. Gracious [13] comes ultimately from Latin grātiōsus; grateful [15] is an English formation. (The apparently similar gracile ‘slender’ [17], incidentally, is not etymologically related; it comes from Latin gracilis ‘slender’.) => agree, grateful
