The story
- French · borrowed fromlingerie“linen closet”
- English todaylingerie
Borrowed from French lingerie (“linen closet”). The irregular pronunciation is a hyperforeignism; it may derive from the frequent shift of /ɛ̃/ (which is this word's first vowel in standard French) toward /ɑ̃/ or [æ̃] in European French, which also tends to be drifted towards /ɔ̃/.
Etymology from Wiktionary, CC BY-SA 4.0.