> I wonder if the three waves might have some significance as a portent as
> well? A legal commentary on injuries describes the symptoms of the most
> serious injury (crólige báis; deadly bed-wound) as consisting of 'na trí
> tonna' (the three waves).
Here's another instance of three ruinous waves to consider,
from Meyer's translation of "The Wooing of Emer" (on line at
'Over the Marrow of the Woman Fedelm' I said, i.e., the Boyne.
It is called Boyne from Boand, the wife of Nechtan, son of
Labraid. She went to guard the hidden well at the bottom of
the dun with the three cupbearers of Nechtan, viz., Flex and
Lesc and Luam. Nobody came without blemish from that well,
unless the three cupbearers went with him. The queen went out
of pride and overbearing to the well, and said nothing would
ruin her shape, nor put a blemish on her. She passed left-hand-
wise round the well to deride its power. Then three waves broke
over her, and smashed her two thighs and her right hand and one
of her eyes.