In French,
praticable means
two things.
A mobile platform that holds the stage.
In stage terminology, a praticable is a structural piece: a platform, a staircase, a mobile riser that supports the performance without being part of it. It's never in the spotlight, but without it nothing holds.
Feasible, viable, workable.
In everyday language, praticable means concrete, applicable, reasonable. It's what you say about a road that's passable, an idea that holds up, a project that's achievable. Both meanings suit us.