slave
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noun
a person who is the legal property of another and is forced to obey them.
奴隷
a person who works very hard without proper remuneration or appreciation:
奴隷のように働く人
e.g. by the time I was ten, I had become her slave, doing all the housework.
a person who is excessively dependent upon or controlled by something:
【欲望･習慣などの】とりこ, とりつかれた人; 【権力に】盲目的に従う人 «to, of»
e.g. the poorest people of the world are slaves to the banks
e.g. she was no slave to fashion.
a device, or part of one, directly controlled by another:
〘コンピュ〙 スレーブ〘ほかのシステムによって制御されるシステム･装置〙
e.g. as modifier : a slave cassette deck. Compare with master1.
an ant captured in its pupal state by an ant of another species, for which it becomes a worker.
slave ant: 奴隷アリ
verb no object
work excessively hard:
〖～＋副詞〗 «…で» (奴隷のように)あくせく働く(away) «at» (!〖副詞〗は目的などの表現)
e.g. after slaving away for fourteen years all he gets is two thousand.
with object subject (a device) to control by another:
e.g. should the need arise, the two channels can be slaved together.
ORIGIN
Middle English: shortening of Old French esclave, equivalent of medieval Latin sclava (feminine) ‘Slavonic (captive)’: the Slavonic peoples had been reduced to a servile state by conquest in the 9th century.