Resembling or relating to furrows; marked by grooves or parallel lines.
From 'furrow' plus the adjective suffix '-y,' creating a shortened or dialectal form. This appears to be a rare or regional variant of 'furrowy.'
Regional dialects and informal speech are full of words like 'furthy' that never make it into dictionaries—farmers talking about their fields might use completely different words than what's in standard English.
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