Where does “thyngd” come from?

thyngd (Old Swedish) comes from Old Norse þyngd, from Proto-Germanic þungiþō, from Proto-Germanic þunguz, from Proto-Indo-European téngʰus.

Ancestry of “thyngd”, step by step

Step	Language	Word	Meaning
1	Old Norse	þyngd	—
2	Proto-Germanic	þungiþō	—
3	Proto-Germanic	þunguz	heavy
4	Proto-Indo-European	téngʰus	—

thyngd — Etymology, Origin & Word History | Etymology Explorer