词根：-gn-, -not-, -gnor-, -gnos-

【词根含义】：知道

【词根来源】：-gnos-来源于拉丁语动词gnosc.o, gnosc.ere, gnovi, gnotus(知道)的词干-gnosc-; -not-来源于拉丁语动词nosco, noscere, novi, not.us(知道)的过去分词词干-not-; -gnor-来源于含有否定前缀i-的拉丁语动词i.gnor.o, i.gnor.are, ignoravi, ignoratus(不知道)的词干-gnor-。这些拉丁语的词源可追溯至原始印欧语-gn-。

【同源单词】：cognition, cognitive, cognize, recognise, recognition

词根词缀：fac-, facil-, fact-, feas-, -feat, -fect, -feit, -facient, -faction, -fic-, -fy, -ficate, -fication

【来源及含义】Latin: to make, to do, to build, to cause, to produce; forming, shaping

【同源单词】Ab officio et beneficio, abortifacient, absorbefacient, absorbifacient, acoustoelectric effect, affair

词根词缀：-fy

【来源及含义】Latin: a suffix; make, do, build, cause, produce

【同源单词】acidify, aerify, albify, amplify, arborify, aurify

词根词缀：not-, nosc-, nit-

【来源及含义】Latin: from gnoscere, to come to know, to get to know, to get acquainted [with]; know, learn; mark, sign; and cognoscere, to get to know, to recognize

【同源单词】annotate, annotation, cognition, cognitional, cognitive, cognoscente