词根词缀：nul-, null-, nulli-

【来源及含义】Latin: not one, not any, none, nothing

【同源单词】Aliquis in omnibus, annul, annullable, annulment, Fortuna multis dat nimis, Fortuna obesse nulli contenta est semel

词根词缀：testi-, test-

【来源及含义】Latin: a witness, one who stands by; from testicle, one of the two oval male gonads supported in the scrotum by its tissues and suspended by the spermatic cord

【同源单词】Ab intestato, attest, attestable, attestant, attestation, attester

词根词缀：uni-, un-

【来源及含义】Latin: one, single; a word element for number 1

【同源单词】disunion, disunionism, disunionist, disunite, disunited, disuniter