To combine with carbon or to mix air with fuel vapor in an engine (variant or related form of carbureate).
From 'carb-' (carbon) + Latin '-ate' (to make or become), creating a verb meaning to expose to or combine with carbon.
Carburate is an older technical term showing how engines were understood as a chemistry problem—you had to 'carburate' the air by mixing it with fuel vapor before combustion could happen efficiently.
Complete word intelligence in one call. Free tier — 50 lookups/day.