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：myster-, myst-

【来源及含义】Greek > Latin: secret, occult [probable literal meaning is "one whose eyes are closed"]

【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, to: "secret, hidden, confidential, concealed": ceal-; clandesti-; crypto-; occult-; orgy-; stego-, stegano-.

【同源单词】mystagogic, mystagogue, mystagogy, mysterious, mystery, mystic