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surrogate

/ˈsɜːrəɡət/; verb /ˈsɜːrəɡeɪt/

A substitute acting in another’s place

From Latin sub (under) + Latin rogo (ask).

noun
verb/ˈsɜːrəɡeɪt/
adjective
sub
Latin
AI-inferred
sub
“under; in the place of”
Latin
Verified
sur-
Assimilated form of sub- before the following sound

from Latin surrogatus , past participle of surrogare / subrogare "put in another's place, substitute." This is

+1 more source
rogo
Latin
AI-inferred
rogāre
“to ask; propose”; figuratively, to nominate or appoint
Latin
Verified
rogātus
“asked, proposed”; participial form used in compounds

from Latin surrogatus , past participle of surrogare / subrogare "put in another's place, substitute." This is

+1 more source
Combined
surrogātus
Latin surrogātus, literally an appointment of someone to stand in another’s place
Latin
Verified
surrogātus
“put in another’s place; substitute”

from Latin surrogatus , past participle of surrogare / subrogare "put in another's place, substitute." This is

+1 more source
English, early 15th century
AI-inferred
surrogate
A person appointed to act for another, originally especially a bishop’s or judge’s deputy
English, 1640s onward
AI-inferred
surrogate
A person or thing serving as a general substitute
English, 1970s onward
AI-inferred
surrogate mother
A woman carrying a pregnancy for another person; the modern reproductive sense
Modern English
surrogate

A surrogate began life not as a hopeful parent but as an official stand-in. In Latin, sub meant “in the place of,” while rogāre meant “to ask” or “propose”—as if someone were formally asked to step into another person’s shoes. The resulting surrogātus described a substitute, and by the early 15th century English used surrogate for deputies acting for bishops and judges. Centuries later, the word traveled from courtrooms into medicine: “surrogate mother” appeared in the psychological sense in 1971, and the pregnancy sense became established in the 1970s. So when a surrogate carries out a task—or carries a child—the ancient image is the same: someone summoned to occupy another person’s place.

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