Where does “tvangstrøye” come from?

tvangstrøye (Norwegian Nynorsk) comes from Norwegian Nynorsk trøye, from Old Norse treyja, from Middle Low German troye, from Old French troie — coat from Troyes.

tvangstrøye (Norwegian Nynorsk): a straitjacket

Definitions

a straitjacket

Ancestry of “tvangstrøye”, step by step

tvangstrøye traces back through two separate lines of ancestry.

via Norwegian Nynorsk trøye

Step	Language	Word	Meaning
1	Norwegian Nynorsk	trøye	a shirt, jacket, or other garment which covers...
2	Old Norse	treyja	jerkin; war-jacket
3	Middle Low German	troye	—
4	Old French	troie	coat from Troyes

via Norwegian Nynorsk tvang

Step	Language	Word	Meaning
1	Norwegian Nynorsk	tvang	force, coercion, duress
2	Norwegian Nynorsk	tvinge	—

Every word from Old French troie →Every word from Middle Low German troye →Every word from Old Norse treyja →