Etymology: from Early Irish líath. Related to the Welsh llwyd,
the Old Breton loit, the Middle Breton loet, from *leito-/*pleito-/*peleito-,
from Greek pelitnós, from the Proto-Indo-European root *pel- (grey, dull colour, pallor)
falt liath - grey hair
liath, a' liathadh - to make/become grey
purpaidh [purbɪ] - purple
Etymology: from Irish purpuir, from Middle Irish purpuir, from Latin purpura (purple fish; purple; purple cloth; finery; royalty).