  We report on the magnetic, thermodynamic, dielectric, and pyroelectric
measurements on the hitherto unreported Fe${_4}$Ta${_2}$O${_9}$. This system is
seen to exhibit a series of magnetic transitions, many of which are coupled to
the emergence of ferroelectric order, making Fe${_4}$Ta${_2}$O${_9}$ the only
genuine multiferroic in its material class. We suggest that the observed
properties arise as a consequence of an effective reduction in the
dimensionality of the magnetic lattice, with the magnetically active
Fe${^{2+}}$ ions preferentially occupying a quasi 2D buckled honeycomb
structure. The low temperature $H$-$T$ phase diagram of Fe${_4}$Ta${_2}$O${_9}$
reveals a rich variety of coupled magnetic and ferroelectric phases, in
similarity with that observed in the distorted Kagome systems.
