可微

differentiable (math.)

can / may / able to / to approve / to permit / to suit / (particle used for emphasis) certainly / very

used in 可汗[ke4 han2]

surname Wei / ancient Chinese state near present day Chongqing / Taiwan pr. [Wei2]

tiny / miniature / slightly / profound / abtruse / to decline / one millionth part of / micro- / Taiwan pr. [wei2]