A variant or dialectal form related to 'frugal' or expressing frugal-like qualities; sometimes a dialectal or non-standard usage.
This appears to be a variant or rare dialectal form possibly influenced by 'frugal' with regional pronunciation shifts, though historical documentation is limited and it may be a local or specialized term.
Words like 'fruggan' remind us that dialects and regional variations of standard words exist everywhere—language isn't just what appears in dictionaries but also what real people say in their communities.
Complete word intelligence in one call. Free tier — 50 lookups/day.