cw laser emission has been observed from CS2 (11.5 μ), C2H2 (8 μ), and N2O (10.6 μ) transitions pumped by energy transfer from vibrationally excited CO in an electric discharge gas-dynamic laser device. Proposed energy-transfer pathways for these three lasers are described. Supersonic expansion cooling plays a critical role in depopulating the lower laser levels in the CO-CS2 and CO-C2H2 systems. Maximum output powers measured for each of these systems are presented. The dependence of output power on the flow rate of the injected laser species is discussed.