To glue or stick something onto a surface, often as a prefix meaning to cover completely with glue.
From Middle English be- (prefix meaning 'to cover' or 'to make') + glue (from Old French glu, from Latin glus meaning sticky substance). The be- prefix intensifies or completes the action.
The 'be-' prefix was hugely productive in Middle English, creating verbs that meant 'to cover with' or 'to make thoroughly'—speakers could attach it to almost any noun to create a new verb, like 'befriend' or 'besmirch.' Many of these creative formations didn't survive into modern English, making words like 'beglue' fascinating linguistic fossils.
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