词根词缀：contra-, contro-, counter, contre-

【来源及含义】Latin: against, opposed to, opposite, conflicting, different, clashing, unaccommodating

【同源单词】accounter, acrocontracture, contentious, contraband, contrabandist, contrabass

词根词缀：tend-, tendo-, ten-, teno-, tenot-, tenonto-, tens-, tent-, -tend, -tension, -tent, -tense, -tensive, -tentious

【来源及含义】Greek > Latin: to move in a certain direction; to stretch, to hold out; tension; as well as tendon, sinew

【同源单词】Achilles tendon, achillotenotomy, attend, attendance, attendance, attendant

词根词缀：vers-, vert-, -verse, -version, -version, -versation, -versal, -versary, -vert, vort-, vors-

【来源及含义】Latin: bend, turn

【相关词根词缀】 Inter-related cross references involving word units meaning "bend, curve, turn": diversi-; diverticul-; flect-, flex-; gyro-; meand-; -plex; streph-; stroph-; tors-; tropo-; verg-; volv-.

【同源单词】ad, adversaria, adversary, adversative, adversative, adversatively