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：typo-, typ-, -type

【来源及含义】Greek > Latin: to beat, to strike; a blow; a dent, an impression, a mark, original form; a mold; a figure, an image, a form, a kind

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": eido-; figur-; form-; icono-; ideo-; imag-; morpho-; -oid.

【同源单词】allelotype, allotype, allotypy, ambrotype, androtype, antitype