The definition of comportment is behavior, or the way you act and carry yourself.
When you carry yourself in a very regal and proud manner, this is an example of yourcomportment.
behavior or bearing; deportment
Origin of comportmentFrench comportement: see comport
Manner of behaving; bearing; deportment. See Synonyms at behavior.
(plural comportments) from (verb) comport
From Middle French comportement.