needfulWiktionary 原文/ˈniːdfl̩/构词拆解needneed词干ful-ful后缀-fulUsed to form adjectives from nouns, with the sense of being full of, tending to, or thoroughly possessing the quality expressed by the noun.词源链古英语Old English约 450–1150 年nēodful‘necessary; earnest; zealous’↓ 继承中古英语Middle English约 1150–1500 年needeful↓ 继承中古英语Middle English约 1150–1500 年nedeful↓ 继承词源说明From Middle English needeful, nedeful, from Old English nēodful (“necessary; earnest; zealous”). Equivalent to need + -ful. Cognate with Dutch noodvol, German notvoll.释义形容词adjective1Needed; necessary; mandatory; requisite; indispensable.2archaicNeedy; in need.名词noun1Anything necessary or requisite.