Etymograph

English

moodiness

Moodiness may come from Middle English modinesse ‘pride’.

  1. Middle Englishc. 1150–1500modinesse‘pride’uncertain
  2. Englishtodaymoodiness

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Middle Englishc. 1150–1500modinesse‘pride’uncertain
  2. Englishtodaymoodiness

Formed from moody + -ness

Proto-Indo-European *meh₁- ‘to endeavor’

…

Proto-Germanic *mōdaz ‘mind’

Proto-Germanic *mōdagaz ‘courageous’

Old English mōdiġ ‘brave’

Middle English mody ‘Boastful, conceited, arrogant, or vain’

English moody

The story

Either inherited from Middle English modinesse (‘pride’), from Old English mōdiġnes, or formed anew from moody + -ness.

Linked words

through Proto-Indo-European *meh₁- ‘to endeavor’

month, measure, meal, moon, moral, meter, sunny, dimensional, immense, metric, dimension, metre, meta, mesa, menstrual, asymmetry, commensurate, mensa, madder, metrology, mete, metis, metra, firman, menses, 64 more

through Old English mōdiġ ‘brave, courageous’

moody

Today it means

noun The property of being moody.

Language periods are conventional ranges, not dates for this word.

Etymograph / Middle English modinesse / moodiness