An archaic or variant form meaning musty, stuffy, or having the quality of a frow (stuffy room).
Likely an older or dialectal variant form related to 'frowsy', 'frowsty', or 'frowst', using the informal adjective-forming suffix '-y' rather than '-sy' or '-sty'.
The existence of 'frowy' alongside 'frowsy', 'frowsty', and 'frowzy' shows how the same concept evolved different pronunciations and spellings across English regions—the '-y' ending is the most informal and least common.
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