To tread forward; to walk or step ahead, or to proceed by stepping.
Compound of Old English 'for-' (forward, forth) plus 'tread' (to step or walk). This archaic or dialectal form combines prefix and verb to indicate forward motion.
You'll almost never hear 'fortread' in modern English—it's a ghost word from Middle English poetry, replaced by simpler terms like 'walk' or 'step forward.' Linguists love it because it shows how English once stacked prefixes and verbs together in ways that sound almost Elvish!
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