-hood

suffix

(indicates a state or condition characterized by the preceding term, usually an adjective)

Wiktionary

Pronunciation: /hʊd/

suffix

Etymology: Etymology tree Proto-Indo-European *keyt-der. Proto-Germanic *haiduzder. Proto-West Germanic *-haiduder. Old English -hād Middle English -hede English -hood From Middle English -hode, from Old English -hād, from Proto-West Germanic *-haidu, from Proto-Germanic *haiduz (compare -head). Cognate with German -heit, -keit, Dutch -heid, Afrikaans -heid, Swedish -het, Elfdalian -iet, Norwegian Bokmål -het, Norwegian Nynorsk -heit, Danish -hed. The Swedish, Elfdalian, Norwegian and Danish endings were borrowed from Middle Low German.

A substantive suffix denoting a condition or state of being.
“child + -hood → childhood”
A substantive suffix denoting a group sharing a specified condition or state.
“brother + -hood → brotherhood”
“neighbour + -hood → neighbourhood”