  A mechanism for the masses of third, second, and first generation charged
fermions at the tree, 1-loop, and 2-loop levels, respectively, is proposed. The
fermionic self-energy corrections that lead to this arrangement are induced
through heavy vector bosons of a new gauged flavour symmetry group $G_F$. It is
shown that a single Abelian group suffices as $G_F$. Moreover, the gauge
charges are optimized to result in relatively smaller flavour violations in
processes involving the first and second generation fermions. The scheme is
explicitly implemented on the Standard Model fermions in an anomaly-free manner
and is shown to be viable with observed charged fermion masses and quark
mixings. Constraints from flavour violations dictate the lower limit on the new
physics scale in these types of frameworks. Through optimal flavour violation,
it is shown that nearly two orders of magnitude improvement can be achieved on
the lower limit, leading to the new physics scale $\ge 10^3$ TeV in this case.
Further improvements are possible at the cost of the down quark mass deviating
more than $3 \sigma$ from its value extracted from lattice calculations.
Options for inducing tiny masses for light neutrinos are also discussed.
