Where does “nödtvång” come from?

nödtvång (Swedish) comes from Swedish tvång, from Swedish tvinga, from Old Swedish þvinga, from Old Norse þvinga, from Proto-Germanic þwinganą — to force.

nödtvång (Swedish): necessity (due to unfortunate circumstances)

Definitions

necessity (due to unfortunate circumstances)

Ancestry of “nödtvång”, step by step

nödtvång traces back through two separate lines of ancestry.

via Swedish tvång

Step	Language	Word	Meaning
1	Swedish	tvång	coercion, compulsion
2	Swedish	tvinga	to force
3	Old Swedish	þvinga	to weigh down
4	Old Norse	þvinga	to weigh down; to compel, force
5	Proto-Germanic	þwinganą	to force

via Swedish nöd

Step	Language	Word	Meaning
1	Swedish	nöd	a want, a need, a famine, a trouble
2	Old Norse	nauð	distress; need, necessity
3	Proto-Norse	ᚾᚨᚢᛞᛁᛉ	need
4	Proto-Germanic	naudiz	need; trouble, distress; compulsion, force

Every word from Proto-Germanic þwinganą →Every word from Old Norse þvinga →Every word from Old Swedish þvinga →