染指

to dip a finger (idiom); fig. to get one's finger in the pie / to get a share of the action / abbr. for 染指於鼎|染指于鼎

to dye / to catch (a disease) / to acquire (bad habits etc) / to contaminate / to add color washes to a painting

finger / to point at or to / to indicate or refer to / to depend on / to count on / (of hair) to stand on end