  We present K-band (1.9 -- 2.5 micron) spectra of the Type Ic SN 2000ew
observed with IRCS on the Subaru Telescope. These data show the first detection
of carbon monoxide (CO) emission in a Type Ic supernova. The detection of CO in
SN 2000ew provides further evidence that molecule formation may be a common
occurrence in core-collapse supernova ejecta. The spectrum also contains narrow
emission lines of [Fe II] and He I probably from dense clumps of hydrogen-poor
circumstellar gas surrounding SN 2000ew. Our spectrum of SN 2000ew shows no
trace of an unidentified feature seen near 2.26 micron, just blueward of the CO
emission, in the spectrum of SN 1987A and we discuss proposed detections of
this feature in other Type II supernovae.
