Etymograph

English

have a cob on

Have a cob on may come from English cob ‘male swan’.

  1. English1500–presentcob‘male swan’uncertain
  2. Englishtodayhave a cob on

attested reconstructed ? uncertain or disputed

Lineage

  1. English1500–presentcob‘male swan’uncertain
  2. Englishtodayhave a cob on

Made of the words have + a + cob + on

Proto-Indo-European *kap- ‘to seize’

Proto-Germanic *habjaną ‘to have, to hold’

Proto-West Germanic *habbjan ‘to have’

Old English habban ‘to have, possess’

Middle English haven ‘to own’

English have

Proto-Indo-European *h₁óynos ‘one’

Proto-Germanic *ainaz ‘one’

Proto-West Germanic *ain ‘one’

Old English ān ‘one; a certain’

Middle English a

English a

Middle English cobbe ‘male swan’

English cob

Proto-Indo-European *h₂en- ‘on’

Proto-Germanic *an ‘on’

Proto-West Germanic *ana

Old English on ‘on’

Middle English on ‘on’

English on

The story

Perhaps from cob (‘male swan’), noted for its ill-temper.

Today it means

verb To be in a bad mood; be grumpy.

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

Etymograph / English cob / have a cob on