till, cultivate
畉 centers on working the soil: tilling and cultivating land for farming.
畉 combines 田 (field) with 夫 (man), suggesting a man working in the field, which aligns with the meanings of tilling and cultivating.
A man (夫) works in the field (田), tilling the soil to cultivate crops.
For フ, imagine a farmer tilling the field while humming a tune: 'fu fu fu' as he works the soil.