Wiki-Haze (Kasumi)

It is a term used as an alias for AWASE. It is derived from the fact that during the finishing process of AWASE, the core material is given a glossy finish while the outer layer of the blade is often finished with a mottled pattern to create a "Kasumi" effect.

Related websites
Single vs. Double-Edged Japanese Knives: A Comparative Guide | KIREAJI