Merriam-Webster's Collegiate Dictionary
se·cede
\\si-ˈsēd\\ intransitive verb
(se·ced·ed ; se·ced·ing) ETYMOLOGY Latin secedere, from sed-, se- apart (from sed, se without) + cedere to go — more at suicide
DATE 1749
: to withdraw from an organization (as a religious communion or political party or federation)
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se·ced·er noun secede
1702, "to leave one's companions," from L. secedere (see secession). Sense of "to withdraw from a political or religious alliance of union" is recorded from 1755.
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
secede
se·cede / si5si:d / verb [V]
~ (from sth) (formal) (of a state, country, etc. 州、邦、国家等) to officially leave an organization of states, countries, etc. and become independent
退出,脱离(组织等):
The Republic of Panama seceded from Colombia in 1903.
巴拿马共和国于 1903 年脱离哥伦比亚。
Webster's Third New International Dictionary, Unabridged
se·cede
\sə̇ˈsēd, sēˈ-\
intransitive verb
(
-ed/-ing/-s)
Etymology: Latin
secedere, from
sed-, se- apart (from
sed, se without) +
cedere to go — more at
idiot
,
cede
: to withdraw into isolation
: leave a group
: quit
;
especially : to withdraw from an organization, communion, or federation (as a church or political party)
< seceded from the conversation — Elizabeth Bowen > < about 10 more deputies have seceded from the government majority — Atlantic >