mas·ter·ly 
(măstər-lē)
(măstər-lē)adj.
Having or showing the knowledge or skill of a master. See Usage Note at masterful.
adv.
With the skill of a master.
master·li·ness n.
- articularly
- articulate
- articulately
- articulateness
- articulation
- articulative
- articulator
- articulatory
- Artie
- artifact
- artifactual
- artifice
- artificer
- artificial
- artificial chromosome
- artificial horizon
- artificial insemination
- artificial intelligence
- artificiality
- artificial language
- artificial life
- artificially
- artificial respiration
- artificial selection
- artillerist