Where does “seldcūþ” come from?

seldcūþ (Old English) comes from Old English seld-, from Old English seld, from Old English setl, from Proto-Germanic setlaz, from Proto-Indo-European sḗd- — to sit.

seldcūþ (Old English): unusual, unwonted, little known, unfamiliar,...

Definitions

unusual, unwonted, little known, unfamiliar,...

Ancestry of “seldcūþ”, step by step

Step	Language	Word	Meaning
1	Old English	seld-	rare, infrequent; unusual; special
2	Old English	seld	—
3	Old English	setl	sitting, residence; seat, bench, throne; setting
4	Proto-Germanic	setlaz	seat; chair; settle
5	Proto-Indo-European	sḗd-	to sit

Every word from Proto-Indo-European sḗd- →Every word from Proto-Germanic setlaz →Every word from Old English setl →