Wasei-eigo from 'personal chair'; refers to a comfortable, often upholstered single-seat chair for relaxing, similar to an armchair or lounge chair.
wasei-eigo (Japanese-coined English), from personal chair
I put a new armchair in the living room.
He is sitting in the lounge chair reading a book.
Variant with interpunct; less common but still seen.
Wasei-eigo from English 'personal' + 'chair'. The exact origin is uncertain, but it likely emerged in Japanese furniture marketing to describe a comfortable single-seat chair.