Definition of sord in English:

sord

noun

rare
  • A group of mallards.

    ‘a sord of mallards on the wing’
    • ‘A sord of mallards dive for food.’
    • ‘I had come to observe so we passed a 'sord' of mallards by harmlessly.’
    • ‘In a sord of mallards, the breeding male stands out with his green head, black rear, and yellowish orange bill tipped with black.’
    • ‘I stood on the shoreline observing a sord of mallards paddling around.’

Origin

Late Middle English: from obsolete sord ‘to rise or soar up’, via Old French from Latin surgere ‘to rise’; first found in a medieval glossary of collective terms.