A somewhat literary or traditional word for clothing as something worn on the body; in everyday modern speech, 服 is usually more natural for ordinary clothes.
I coated the shrimp in batter and fried it in oil.
In the story, the king sets out on a journey wearing humble garments.
Used for robe-like garments, especially in traditional, religious, ceremonial, or literary contexts.
The monk changed into a purple robe before the memorial service.
This tempura has a thin batter and is nice and crispy.
The monk wore a white robe and chanted a sutra.
衣装 refers to a costume or formal outfit for a special occasion, while 衣 more broadly means a robe-like garment or, in cooking, a coating.
衣（ころも） is an item of clothing, so 着 is the natural counter; 枚 is not the usual choice for garments.
linen robe
seasonal change of clothing; changing one's dress for the season · renovation; facelift; redesign
angel's raiment; robe of feathers · wings; plumage · type of bug
undergarment; underwear · lower garment; trousers; pants
ancient Chinese-style clothing
summer clothes; summer clothing
garb of love; love as clothing
travel clothes; traveling attire
fur coat; fur garment · down-filled clothing; garment made with bird down
Standard attested kanji spelling for ころも; common in 天ぷらの衣 and also used for traditional or literary clothing senses.
ころも is a native Japanese word conventionally written with 衣, a kanji meaning clothing. The food-coating sense can be understood as an extension from something that covers, but the exact historical development is not specified.
fur coat; leather garment
fancy kimono for cherry blossom viewing
kanji 'clothes' radical at left
sleeve