# Nomenclature Question

## Main Question or Discussion Point

So I'm studying for my CM final and in looking over the section on ignorable coordinates and generalized momenta I come across the definition for conjugate momentum $$p_{i} = \frac{\partial L}{\partial \dot{q_{i}}}$$

My question is simple - why is it called 'conjugate'? I just never really thought to question to the name.

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