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believe

/bɪˈliːv/

Accept as true or have faith in

From O.English / Proto-Germanic be- (Near) + O.English / Proto-Germanic leave (Let remain).

verb
be-
Old English
AI-inferred
be-
A productive prefix with meanings such as “about,” “thoroughly,” or “causing.”
Middle English
AI-inferred
be- / bi-
Continued as the initial element of beleven and bileven.
leave
Old English
AI-inferred
lǣfan
“To leave, allow to remain”; this is the source proposed by one analysis for the second element of believe.
Combined
Old English belīefan / Middle English beleven, bileven
The traditional be- + leave analysis is disputed. Other evidence connects the second element with Old English lēof, “dear, valued,” and Proto-Germanic *laub-; the whole form is also traced to *galaubijan, “to believe.”
Old English
AI-inferred
belyfan; belīefan
“To have faith or confidence.”
Middle English
AI-inferred
beleven / bileven
The modern verb developed its characteristic long-vowel pronunciation and spelling.
Modern English
AI-inferred
believe
Meanings include accepting something as true, trusting testimony, and holding an opinion.
Modern English
believe
“

Believing once had a surprisingly physical flavor: to believe someone may originally have meant to hold that person dear, valuable, or trustworthy. The Old English form was belyfan or belīefan, and one influential analysis breaks it into be- plus a form related to “leave”—as if belief involved granting something permission to remain in the mind. But the trail is contested: other evidence connects it with Old English lēof, “dear,” and German glauben, all pointing toward the idea of valuing or approving something. By the early 14th century, believe had expanded from personal trust to accepting testimony and doctrines without complete proof; its spelling beleeve remained common until the 17th century. So belief is not merely an idea parked in the head—it is, etymologically, something you treat as worth keeping.

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