词根：terr = earth（地）
来源于拉丁文terra(=earth)。它的同形异源根terr来源于terrére，意为 to frighten,注意两者区别。
同源词：
1. terramycin
n.土霉菌《mycin = fungus（霉菌）》
2. terraqueous
adj.由水与陆地合成的《拉丁文aqua = water》
3. terrene
adj.地球的；陆地的；现世的
4. inter
v.埋葬，土葬（向地里去） *in(=into),ter<terr(=earth)
5. disinter
v.挖出；使显现（与埋葬相反）《dis- = contrary》
6. deteriorate
v.（使）恶化；（使）退化；变质，变坏 *de(=down),ter<terr(=earth)
deterioration n.恶化，（质量）下降，堕落
Leather quickly deteriorates in a hot,damp climate. 皮革在闷热、潮湿的环境中很快就会变质。
7. esoteric
adj.秘传的，秘密的；难解的，深奥的 *eso(=within),ter<terr(earth)
8. extraterrestrial
n.外星人，天外来客（缩写：E.T.） adj.地球外的 *extra(=outside),ter<terr(=earth)
9. extraterritorial
adj.治外法权的 extra(=outside)
extraterritoriality n.治外法权
10. interment
n.埋葬，土葬 *in(=in),ter<terr(=earth)
11. Mediterranean
adj.地中海的；（小写）被陆地包围的 n.(the~)地中海 *medi(=middle),ter<terr(=earth)
12. subterranean
adj.地下的 n.地下洞穴 *sub(=under),ter<terr(=earth)
subterranean passage/railway(railroad) 地下通道/地铁
subterranean water 地下水
subterranean maneuver 地下活动
13. terrace
n.梯田；倾斜的平地，台地；斜坡上屋前的街巷；（道路中央的）狭长形小园地区
v.使成梯形地，使成为台地 *ter<terr(=earth)
terraced fields 梯田
terraced lawn 梯形草坪
terraced houses 排房（有时也带有通向后院的小路）
14. terra firma
n.陆地，大地（有别于海洋、河流）*ter<terr(=earth),firm(=stong)
glad to be on terra firma again 很高兴能得返陆地
15. terra incognita
n.未探明地区，未知领域 *ter<terr(=earth),in(=not),co<com(=thoroughly),gn<gno(=knwo)
16. terrain
n.地形，地势；地带，地域；领域，范围 *terr(=earth)
difficult terrain for heavy armored vehicles 重装甲车难以行进的地形
17. terrestrial
adj.地球的，地上的；人间的；陆地的；陆栖的 n.地球上的居民；陆生生物 *ter<terr(=earth)
terrestrical globe 地球仪
terrestrial heat 地热
terrestrial parts of the world 地球的陆地部分
18. terrier
n.一种猎狗（小而活泼，会为寻找食物而挖洞）
19. territorial
adj.领土的；（T~）美国准州的，美国领土的
territorial waters/air/seas 领水/领空/领海
territorial issue/expansion 领土问题/领土扩张
territorial integrity/sovereignty 领土完整/领土主权
territorial possessions 土地财产
Teritorial laws 美国领地的法律
20. territory
n.领土；地域，地区；（动物的）领地，活动范围；（科学等的）领域，范围；美国的准州（未被正式成为州的地区）*ter<terr(=earth)
South Korean territory 韩国领土
leased territory 租借地
Much territory in Africa is desert 非洲的大片地区是沙漠
territory of biochemistry 生物化学领域
Until 1959 Hawaii was a Territory,not a State. 直到1959年，夏威夷还只是一个准州，而不是州。
词根词缀：agra-
【来源及含义】Greek > Latin: from ager to agri and agrarius, of the land; land, fields
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agrest-; agri-; agro-; argill-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】agral, agrarian, agrarianism, agrarianization, agrarianly
词根词缀：agrest-
【来源及含义】Latin: rustic, rural; pertaining to the fields; from ager then agrestis, "field"
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agri-; agro-; argill-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】agrestal, agrested, agrestial, agrestian, agrestic, agrestical
词根词缀：agri-, agrio-, ager
【来源及含义】Greek > Latin: fields; wild, savage; living in the fields, via ager, agri.
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agro-; argill-; choro-; chthon-; epeiro-; geo-; glob-; myso-; lut-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】agrarian, agrarianism, agrarianization, agrarianly, agribusiness, agricere
词根词缀：agro-
【来源及含义】Greek: land, soil, field, fields; earth; wild, as one who lives in the fields; wildness; savage, savageness
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; argill-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】Agrobacterium, agrobacterium, agrobiologist, agrobiology, agrobusiness, agrochemical
词根词缀：argill-, argillo-
【来源及含义】Greek > Latin: clay
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】argillaceous, argillaceous rock, argillation, argillic, argillic alteration, argillic horizon
词根词缀：chim-, chimer-
【来源及含义】Greek: khimaira, fabled monster; unreal, fantastic, imaginary, fanciful, unrealistic; however, in medical and other scientific fields, characterized by two or more genetically distinct cell types in one organism
【同源单词】blood group chimerism, Chimera, chimera, chimeral, chimeraplast, chimeraplasty
词根词缀：choro-, chor-
【来源及含义】Greek: place, space, land; country, district
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; argill-; chthon-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】chorographer, chorographic, chorographical, chorographically, chorography, chorological
词根词缀：chthon-
【来源及含义】Greek: earth, of the earth, soil, dirt
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; argill-; choro-; epeiro-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】allochthon, allochthonous coal, allochthonous stream, allochthonous, antichthon, antichthones
词根词缀：epeiro-, epeir-, epiro-, epir-
【来源及含义】Greek: land; mainland; continent
【相关词根词缀】 Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; argill-; choro-; chthon-; geo-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.
【同源单词】epeiric, epeiric sea, epeirogenesis, epeirogenic, epeirogeny