Old English godes willan "state of wishing well to another;" see good (adj.) + will (n.). Meaning "cheerful acquiescence" is from c. 1300. In the commercial sense "degree of favor enjoyed through patronage of customers" from 1570s.
goober
good
good den
Good Friday
good morning
good will
good-bye
good-day
good-for-nothing
good-humored
good-looking
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