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Pronunciation varies by accent · verb
(rare, nonstandard, transitive) To cover with filth; besmut; besmirch; make filthy..
Rock oil was considered, then, a local nuisance, a malodorous black gunk that floated like a rumor down the creek, filthening whatever it touched: a farmer's overalls, a cow's hide, a child's shoes.
Use filthen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Filthen means (rare, nonstandard, transitive) To cover with filth; besmut; besmirch; make filthy..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Rock oil was considered, then, a local nuisance, a malodorous black gunk that floated like a rumor down the creek, filthening whatever it touched: a farmer's overalls, a cow's hide, a child's shoes.
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