  We construct and present a model for leptonic mixing based on
higher-dimensional operators, using the Froggatt-Nielsen mechanism, and Abelian
horizontal symmetries (flavor symmetries) of continuous and discrete type. Our
model naturally yields bilarge leptonic mixing, coming from both the charged
leptons and the neutrinos, and an inverted neutrino mass hierarchy spectrum.
The obtained values of the parameters, i.e., the leptonic mixing parameters and
the neutrino mass squared differences, are all consistent with the atmospheric
neutrino data and the Mikheyev-Smirnov-Wolfenstein large mixing angle solution
for the solar neutrino problem.
