-ant
Assistant
One who assists
Consistent
Consist: to be made up of
Characterized by being made up of
Historical
Having characteristics of history
Ceremonial
Having characteristics of a ceremony
Deodorant
Something that deodorizes
Detergent
Deterge: to clean
Characterized by cleaning
Normal
Norm: what is usual or expected
Having characteristics of the norm
Commercial
Commerce: business
Observant
President
Preside: to be in charge
Characterized by being in charge
Logical
Characterized by logic
Financial
Finance: money
Having characteristics of finance/money
Participant
One who participates
Student
Study: to learn
Characterized by learning/studying
Magical
Characterized by magic
Sequential
Sequence: order
Having characteristics of sequence or being in order