  The Fourier spectrum of the $\gamma$-Dor variable KIC 5608334 shows
remarkable frequency groups at $\sim$3, $\sim$6, $\sim$9, and 11--12\,d$^{-1}$.
We explain the four frequency groups as prograde sectoral g modes in a rapidly
rotating star. Frequencies of intermediate-to-high radial order prograde
sectoral g modes in a rapidly rotating star are proportional to $|m|$ (i.e.,
$\nu \propto |m|$) in the co-rotating frame as well as in the inertial frame.
This property is consistent with the frequency groups of KIC 5608334 as well as
the period vs. period-spacing relation present within each frequency group, if
we assume a rotation frequency of $2.2$\,d$^{-1}$, and that each frequency
group consists of prograde sectoral g modes of $|m| = 1, 2, 3,$ and 4,
respectively. In addition, these modes naturally satisfy near-resonance
conditions $\nu_i\approx\nu_j+\nu_k$ with $m_i=m_j+m_k$. We even find exact
resonance frequency conditions (within the precise measurement uncertainties)
in many cases, which correspond to combination frequencies.
