Archaic spelling and form of 'cled,' an old past tense of 'clad' (to clothe).
Middle English variant spelling of 'cled,' from Old English 'clǣddan.' The doubled 'd' is typical of Middle English orthography before spelling standardization occurred in the 15th-16th centuries.
Words like 'cledde' remind us that English spelling wasn't standardized until printing presses became common in the 1400s—before that, every scribe spelled words slightly differently, so old manuscripts look almost foreign to us.
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