Past participle of climb in archaic English; an obsolete form used in older texts.
From Old English with the strong verb past participle ending -en, which created forms like 'written,' 'spoken,' and 'clomben.' This ending largely disappeared from English except in a few surviving words.
The -en ending for past participles is almost completely gone from modern English (we don't say 'I have clomben'), but it survives in 'written,' 'spoken,' 'given'—precious remnants of how English used to work.
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