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Webster 1913 Edition

Noun.

[

Yean

-ling

. Cf.

A lamb or a kid; an eanling.

Shak.

Noun.

The young of sheep; a lamb. [Obsolete or local.]

yeanling ‎(plural yeanlings)

The newly born offspring of a goat or sheep.
- 1886, Anna Swanwick (translator), The Dramas of Aeschylus, 4th edition, Eumenides, page 183, lines 903–904
  But in due season here may flocks of worth
  Twin yeanlings bear;

the newly born offspring of a goat or sheep

Polish: jagnię (pl) n, owieczka (pl) f
Romanian: ied (ro) m (goat), iadă (ro) f (goat), miel (ro) m (sheep), mioară (ro) f (sheep)

Russian: козлёнок (ru) m ‎(kozljónok) (goat), ягнёнок (ru) m ‎(jagnjónok) (sheep)
Slovak: jahňa n