-hood

1.
a native English suffix denoting state, condition, character, nature, etc., or a body of persons of a particular character or class, formerly used in the formation of nouns: childhood; likelihood; knighthood; priesthood .
Origin
Middle English -hode, -hod, Old English -hād (cognate with German -heit), special use of hād condition, state, order, quality, rank
British Dictionary definitions for -hood

-hood

suffix
1.
indicating state or condition of being: manhood, adulthood
2.
indicating a body of persons: knighthood, priesthood
Word Origin
Old English -hād
Word Origin and History for -hood

word-forming element meaning "state or condition of being," from Old English -had "condition, position," cognate with German -heit, Dutch -heid, all from Proto-Germanic *haidus "manner, quality," literally "bright appearance," from PIE (s)kai- (1) "bright, shining." Originally a free-standing word (see hade); in Modern English it survives only in this suffix.