1. Important derivatives are: cease, cede, abscess, access, ancestor, concede, decease, exceed, precede, proceed, succeed, necessary
重要派生词为： cease， cede， abscess， access， ancestor， concede， decease， exceed， precede， proceed， succeed， necessary

2. To go, yield.
进行, 屈服.

3. Lengthened-grade form *k?d- . cease , cede , cession ; abscess , accede , access , ancestor , antecede , concede , ( concession ), decease , exceed , intercede , precede , predecessor , proceed , recede , retrocede , secede , succeed , from Latin c?dere , to go, withdraw, yield.
变长级形式*k?d- . cease , cede , cession ; abscess , accede , access , ancestor , antecede , concede , ( concession ), decease , exceed , intercede , precede , predecessor , proceed , recede , retrocede , secede , succeed , 源自 拉丁语 c?dere , 进行, 撤回, 屈服.

4. Prefixed and suffixed form *ne-ked-ti- , “(there is) no drawing back” ( *ne- , not; see ne ). necessary , from Latin necesse , inevitable, unavoidable.
添加前缀和后缀的形式 *ne-ked-ti- , “没有退后” ( *ne- ,不，非，未; 参见 ne). necessary , 源自 拉丁语 necesse , 必然的, 不可避免的.

ked的词源：

5. In Pokorny sed- 884.
波科尔尼 sed- 884.