词根词缀：cen-, ceno-, caen-, caeno-, cain-, caino-, kain-, kaino-

【来源及含义】Greek: new, recent, fresh

【相关词根词缀】Cross references of word families related to: "new, recent": ne-, neo-; nov-, novo-.

【同源单词】Caenogaea, caenogenesis, caenogenetic, caenozoic, cainophobia, cainozoic

词根词缀：geno-, gen-, genit-, gener-, -gen

【来源及含义】Greek > Latin: race, kind; line of descent; origin, creation; pertaining to sexual relations, reproduction, or heredity; and more recently, a gene or genes

【同源单词】abiogenesis, abiogenetic, abiogenetically, abiogenous, acrogen, acrometagenesis