(of a woman 女子 large in an attractive way, and with large breasts 丰盈的；乳房丰满的 Word OriginMiddle English: from the stem of Old English būgan ‘to bend’ (of Germanic origin; related to German biegen) + -some. The original sense was ‘compliant, obliging’, later ‘lively and good-tempered’, influenced by the traditional association of plumpness and good health with an easy-going nature.