That ruins someone or something; destructive. Now rare.
Late 16th century; earliest use found in William Covell (d. 1613), writer and Church of England clergyman. From ruinate + -ing.
英汉双解词典包含464360条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。