Last name origins & meanings:
- Slovenian, Croatian, Czech, and Polish: nickname from
kos ‘blackbird’, denoting someone thought to resemble the bird
in some way, for example someone with a good singing voice.
- Czech and Sorbian (Koš): metonymic occupational
name for a basketmaker, from koš ‘basket’.
(Kös): possibly a nickname for a gossip or a smooth-talker,
from Middle High German kōse, koese ‘talk’,
‘chat’. Compare Koser.
- Jewish (Ashkenazic): of
uncertain origin. It may be an ornamental name from Slavic kos
‘blackbird’, as in 1, or alternatively it may be from Hebrew
kos ‘drinking glass’ or Yiddish kos ‘goblet’, ‘cup’,
probably applied as a metonymic occupational name for someone who made
glasses or cups.
- Dutch: from a Zeeland personal name derived
from Constantius (see Constant).
(Kós): from a Turkish loanword kos ‘ram’ (from Old
Turkish qoč, Ottoman Turkish qoç); perhaps a
metonymic occupational name for a shepherd but more probably a
nickname for someone thought to resemble the animal.
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