Observation
Atusseu Shutit. Judith works.
Atusseieu Shutita. She makes Judith work.

The verb atusseieu is a causative verb. It’s formed by adding the suffix -i to the stem atusse- followed by the transitive animate verb final -eu. It means make…, cause to…, render…, here, for example: workmake someone work.

More examples of causative verbs:

VAI VTA (causative)
nikamu he sings nikamuieu she makes him sing
ishpańu she moves in a certain direction ishpańieu he causes her to move in a certain direction
ushiku he is injured ushikuieu she injures him
nipu she dies nipaieu he causes her to die, kills her
VTI VTA (causative)
kasseńitamᵘ he is sad kasseńitamieu she makes him sad
mińueńitamᵘ she is happy mińueńitamieu he makes her happy

Causative verbs can also be created by adding the suffix -uńi to a VTI:

VTI VTA (causative)
utinamᵘ she takes something utinamuńieu he makes her take something

Note: The suffix -uni doesn’t appear to be very productive in the Mamit dialect.

For more information, consult Grammaire innue (Drapeau, 2014: pp. 221-223).