前缀：ultra-

① 表示“极端”

ultrapure 极纯的（ultra＋pure纯的）

ultramilitant 极端好战的（ultra+militant好斗的）

ultraclean 极洁净的（ultra+clean干净的）

ultra-reactionary 极端反动的（ultra+reactionary反动的）

ultraliberal 极端自由主义的（ultra+liberal自由的）

② 表示“超出，超过”

ultrasonic 超音速的（ultra+sonic声音的）

ultramodern 超现代化的（ultra+modern现代化的）

ultramundane 超俗的（ultra+mudane俗气的）

ultrared 红外线的（ultra+red红色的）

ultraviolet 紫外线的（ultra+violet紫色的）

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：chledo-, chled-

【来源及含义】Greek: debris, mud, dirt

【同源单词】chledophile, chledophily, chledophyte

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