ratify

动词 ratify:

1. approve and express assent, responsibility, or obligation
   同义词：sign

1. Over ninety countries ratify an agreement to ban the use of these chemicals.
   九十多个国家批准了一项禁止使用这些化学品的协议。
2. The government has ratified the project.
   政府已经批准了这个项目。
3. These files have been ratified.
   这些文件已经批准生效。

rat.i.fy

v.tr.（及物动词）
rat.i.fied,rat.i.fy.ing,rat.i.fies
To approve and give formal sanction to; confirm.See Synonyms at approve
认可，正式允许，证实参见 approve

来源：
Middle English ratifien
中古英语 ratifien
from Old French ratifier
源自 古法语 ratifier
from Medieval Latin ratific3re
源自 中世纪拉丁语 ratific3re
Latin ratus [fixed] [past participle of] rôro [to reckon, consider] * see rate
拉丁语 ratus [肯定的] [] rôro的过去分词 [思考，认为] *参见 rate
Latin -fic3re [-fy]
拉丁语 -fic3re [后缀，表.使……化.]

【引伸】
rat.ifi.er
n.（名词）