EtymEx

happy

/ˈhæpi/adjective

Feeling pleasure, contentment, or good fortune

From O.Norse, ultimately Proto-Indo-European hap (Chance).

Lineage

Germanicnot directly attestedSelect a stage for details, or drag it

The story

Before happy meant a warm feeling in your chest, it mainly meant being lucky enough to land on the right side of chance. English borrowed the core idea from Old Norse happ, “luck” or “good fortune,” while Middle English speakers may also have reshaped it under the influence of happyn and the familiar noun hap. The trail reaches back, according to one influential proposal, to Proto-Indo-European *kob-, a root connected with fitting, succeeding, and good omens; its distant relatives include Old Irish cob “victory” and Old Church Slavonic кобь “fate.” That makes happy a linguistic cousin of happen: both hover around the idea of events turning out a certain way. English once had other happiness words, including blithe, while gesælig eventually wandered into the very different modern word silly. So when you say you are happy, you are faintly echoing an ancient verdict from the world of omens: fortune has fit itself neatly into your life.

Modern usage

A feeling of overflowing joy, freedom, and excitement.

Heard in
informal online usage

Related words

Confused with
happily, happen, hapless

Words from the same roots

hap · Old Norse, ultimately Proto-Indo-European, ‘Chance, luck, fortune’

Derivedhappen, perhaps, mishap, haphazard, happening, perhaps

Sources