- ceatharn
- a troop, so Irish, Early Irish ceithern, *keternâ; Latin caterua, troop, catêna, a chain; Old Slavonic ceta, company (Stokes). It has also been regarded as borrowed from Latin quaternio, which in the Vulg. means a "body of four soldiers", quaternion. Hence English cateran, kern.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.