An interesting word, in that it can be used in three ways, but its morphology doesn’t change. So … if it doesn’t change, then it has no morphology

in·cuse /ɪnˈkyuz, -ˈkyus/

adjective, noun, verb, cused, –cus·ing.
1.    hammered or stamped in, as a figure on a coin.
2.    an incuse figure or impression.
–verb (used with object)
3.    to stamp or hammer in, as a design or figure in a coin.

[Origin: 1810–20; < L incūsus ptp. of incūdere to indent with a hammer, equiv. to in– in-2 + cūd– beat (akin to hew) + –tus ptp. suffix]