assist

assistance

assistances

assistant

assistants

assistantship

assistantships

assisted

assister

assisters

assisting

assistive

assistor

assistors

assists

bassist

bassists

brassish

cassis

cassises

chassis

classis

classism

classisms

classist

classists

coassist

coassisted

coassisting

coassists

contrabassist

contrabassists

kolbassis

lassis

unassisted