词根：nutr, nurt, nutri = to nourish 营养
在英语中nutr,nurt表示哺育之意，源自拉丁语nutrire,可以追溯到原始印欧语根*(s)nu-,最初表示“喂奶”，进面引申为“哺育”之义。nutr和nurt之间的转换就是字母r和t之间的换位，词根nurt的t变换成s后演变出单词nurse,原指“奶妈”；照料婴儿的人”，后来延伸出“护士，养育者，照料”等含义；照顾婴儿的地方则被称为nursery（托儿所，养育室）。另外，为了更好地衔接后缀，词根nutr加上一个连接成分i，构成了词根nutri,表示“滋润，养育”之意，nutrition （营养），nutrient（营养品，滋补品）均由此根构成。同义词根有来自拉丁语的al,troph。
（*拉丁文nutrire(=to nounrish)——英文字根字典）
同源词：
1. malnutrition（不好的营养状态 mal (=bad) + nutri(=nourishment)）
n.营养失调，营养不良
Malnutrition is a grave public health problem in many African nations. 营养不良是很多非洲国家共有的严重的健康问题。
2. nutriment [nutri 哺育 + -ment 名词后缀]
n.营养，养分；滋养物
3. nutrition [nutri 哺育 + -tion 名词后缀]
n.营养（物）；滋养（物）营养学
nutrition adj.营养的；滋养的; nutritional value 营养价值 ;the care and nutrition of children 儿童看护与营养
4. nutritive [nutri 哺育 + -tive 形容词后缀]
adj.与营养有关的；有营养的 n.营养物
nutritious adj.有营养的；滋养的
5. innutrition [ in- 无，不，没有 + nuti 营养 + -tion 名词后缀]
n.营养不良（失调）（不营养）
6. nutriology [nutri 营养 + -ology 名词后缀 ....学]
n. 营养学
词根：nour, nurs = 喂养, 营养
同源词：
1. nourish [nour 喂养，-ish 动词后缀]
v.养育，喂养，给以营养
2. nourishing [见上，-ing ...的]
adj.富于营养的，滋养的，
3. nourishment [见上，ment 名词后缀]
n.食物，营养品；营养情况
4. nurse [nurs 喂养→喂养者→]
n./v. 保姆；保育员；护士；给...喂奶；培养
5. nursery [nurs 喂养，-ery 名词后缀，表示场所；“喂养的场所”→]
n.托儿所；保育室
6. nursling [nurs 喂养，-ling 名词后缀，表示人]
n.乳婴，婴儿
7. nursemaid [maid 女]
n.保姆
词根：troph = to nourish
来自拉丁语的troph 意to nourish。同义词根有来自拉丁语的nutri,al。
同源词：
1. atrophy（没有营养 a<an(=not,without) + troph(=nourishment)）
n.萎缩；衰退
v.（使）萎缩
Quadriplegics often experience muscular atrophy after their paralysis. 四肢瘫痪者在以后肌肉往往也会萎缩。
2. dystrophy
n.营养失调 *dys (=bad,badly)
3. hypertrophy
n.（因营养过剩等而引起的）[生]肥大 *hyper (=excessive)
词根词缀：alesc-, alit-, olesc-
【来源及含义】Latin: grow; be nourished, nourishment
【同源单词】adolescence, adolescence, adolescent, adolescents, adult, adulticide
词根词缀：alimento-, aliment-
【来源及含义】Latin: food, nourishment
【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": broma-; carno-; cibo-; esculent-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】aliment, alimentary, alimentation, alimentology, alimentotherapy, alimony
词根词缀：broma-, bromat-, brom-, bro-
【来源及含义】Greek > Latin: food
【相关描述】Don't confuse this broma element with the bromo- unit which means "stench" or "stink".
【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": alimento-; carno-; cibo-; esculent-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】abros, abrosia, abrotos, broma, bromatherapy, bromatologist
词根词缀：brycho-, brych-, bryco-, bryc-, bryko-, bryk-
【来源及含义】Greek: to eat nosily or greedily; to eat with much noise, to tear or rip into pieces
【相关词根词缀】 Related "eat, eating" word units: esculent-; esophago-; glutto-; phago-; vor-. Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": alimento-; broma-; carno-; cibo-; esculent-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】brychocarnivorous, brychomania, brychomnivorous, brychophobia, Ixobrychus exilis, Onobrychis
词根词缀：carno-, carn-, carne-, carni-
【来源及含义】Latin: flesh, meat
【相关词根词缀】 Related "meat, flesh" word units: creo-, kreo-; sarco-. Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": alimento-; broma-; cibo-; esculent-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】brychocarnivorous, carnage, carnal, carnality, carnalize, carnally
词根词缀：cibo-, -cibal
【来源及含义】Latin: food; a meal
【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": alimento-; broma-; carno-; esculent-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】ante cibos, ante cibum, antecibal, cibarian, cibarious, cibation
词根词缀：esculent-, -esculent
【来源及含义】Latin: food; good to eat, eatable, edible
【相关词根词缀】 Related "eat, eating" word units: brycho-; esophago-; glutto-; phago-; vor-. Cross references of word families that are related directly, or indirectly, to: "food, nutrition, nourishment": alimento-; broma-; carno-; cibo-; sitio-; tropho-; Eating Crawling Snacks; Eating: Carnivorous-Plant "Pets"; Eating: Folivory or Leaf Eaters; Eating: Omnivorous.
【同源单词】esculent, esculent swallow, hibiscus esculentus, inesculent, rana esculenta, sarcocephalus esculentus