Archaic or dialectal form meaning not paid or unpaid; still owing.
From Middle English 'a-' (not) + 'paid,' literally meaning 'not paid,' using the prefix 'a-' to negate the past participle.
This word is so old that you'd rarely see it today except in historical documents or archaic literature, but it shows how English once used 'a-' as a negation prefix more freely.
Complete word intelligence in one call. Free tier — 50 lookups/day.