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 .