A Scottish and Northern English dialect word meaning besides, moreover, or in addition to something else.
From Old English 'for' (by/at) + 'bi' (by). The 'for' here is a preposition meaning 'by' or 'beside,' not the intensive prefix, creating a word that means 'by the way' or 'additionally.'
Scottish dialects preserved this old word that English largely abandoned—'forby' shows how regional dialects are like linguistic time capsules keeping alive words that disappeared from standard English centuries ago.
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