any loose flowing garment
"The monk slipped into his simple black robe to begin the evening prayer service."
A long loose outer garment, often signifying honorary stature.
"The newly appointed judge removed his suit to put on a black robe as he entered the courtroom."
In plain English: A robe is a loose, comfortable piece of clothing that you wear over your regular clothes to stay warm or relax at home.
"He put on his bathrobe after getting out of the shower."
Usage: Use robe to refer specifically to ceremonial or judicial garments rather than casual bathrobes, which are typically called a "bathrobe." Avoid using the verb form unless referring to the act of dressing in such attire.
To clothe; to dress.
"The old monk would robe himself in a simple gray habit before dawn prayers."
From Middle English robe, roobe, from Old French robe, robbe, reube ("booty, spoils of war, robe, garment"), from Frankish rouba, rauba ("booty, spoils, stolen clothes", literally "things taken"), from Proto-Germanic raubō, raubaz, raubą ("booty, that which is stripped or carried away"), from Proto-Indo-European Hrewp- ("to tear, peel").