Brit., Dialectal robin (sense )
Origin of ruddockMiddle English ruddok ; from Old English rudduc ; from rudu, red (see rudd) + -uc, -ock
Origin of ruddockMiddle English ruddok, from Old English rudduc; see reudh- in Indo-European roots.
Anglo-Saxon ruddic; loaned from the Brythonic *roudākos (whence the Welsh rhuddog, Cornish rudhek) the redbreast. See rud.