usage
masterful is normally used of a person, whereas masterly is used of achievements, abilities, etc.
n. The act of using; mode of using or treating; treatment; conduct with respect to a person or a thing; as, good usage; ill usage; hard usage.
masterful is normally used of a person, whereas masterly is used of achievements, abilities, etc.
n. The act of using; mode of using or treating; treatment; conduct with respect to a person or a thing; as, good usage; ill usage; hard usage.