honor, honorable, honourable, -able, 形容詞接尾辞.
"Now, George, you must divide the cake honorably with your brother Charlie."--George: "What is 'honorably,' mother?" "It means that you must give him the largest piece."--George: "Then, mother, I should rather Charlie would cut it." ["Smart Sayings of Bright Children," collected by Howard Paul, 1886]