词根词缀：fid-, fidel-

【来源及含义】Latin: believe, belief; trust, faith, true

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "faith, trust; faithful, trusting; believe, belief": cred-; dox-.

【同源单词】Ab origine fidelis, Ad finem fidelis, Adeste, affiance, affiance, affiant

词根词缀：sign-

【来源及含义】Latin: mark, token, indication; a fact, a condition, or a quality

【同源单词】assign, assignable, assignably, assignation, assignee, assigner