Routhian
... that the Routhian of analytical mechanics is a hybrid of the Lagrangian and the Hamiltonian?
... that the <b id="mwTw"><a href="./Routhian_mechanics" id="mwUA" rel="mw:WikiLink" title="Routhian mechanics">Routhian</a></b> of <a href="./Analytical_mechanics" id="mwUQ" rel="mw:WikiLink" title="Analytical mechanics">analytical mechanics</a> is a hybrid of the <a href="./Lagrangian_mechanics" id="mwUg" rel="mw:WikiLink" title="Lagrangian mechanics">Lagrangian</a> and the <a class="mw-redirect" href="./Hamiltonian_function" id="mwUw" rel="mw:WikiLink" title="Hamiltonian function">Hamiltonian</a>?