An archaic or dialect word meaning to make rough or roughen.
From 'en-' (to cause to be) + 'rough' (uneven, from Germanic roots). This word is obsolete in modern English.
This is a ghost word—mostly lost to time, though it shows how English used to form verbs by adding 'en-' to adjectives freely, a pattern we barely use anymore!
Complete word intelligence in one call. Free tier — 50 lookups/day.