词根词缀：manu-, man-, mani-, mandat-, manda-

【来源及含义】Latin: hand or hands

【相关词根词缀】 Related "hand" units: cheiro-, chiro-; Dextro and Sinsitro History; Hands as Objects of Art; Hands: Mechanical Marvels; palm.

【同源单词】ad manum, amanuensis, bimanous, bimanual, bimanually, biomanipulation

词根词缀：quadri-, quadra-, quad-, quadru-

【来源及含义】Latin: four, fourth; a word element for number 4

【相关词根词缀】 Cross references of word families that are related, partially or totally, to: "four, fourth": quatr-; tessara-; tetra-.

【同源单词】biquadrate, carillon, omniquadrante hora, quadragenarian, quadragenary, Quadragesima