Rosmerta: the 'Great Provider' (or quite possible 'great Prophetess'), she is a mainly a continental Goddess who was most often associated with the Mercury (or Lugus to our interest). She is strongly associated with seer-ship, fate and sovereignty. There are indications she was also associated with a cult of the dead.
A Hymn to Rosmerta at the filling of the cup
It is you who pours out this drink,
not my hands that cause it's flowing.
It is you that can make this happen
as it is you who has that power to give
it is you who bestow this drink upon us
it is you who hands it to the sovereign
not my hands that pour and present it Rosmerta;
it is only you who can offer this cup
it is you who makes it more than it is
through your grace it becomes the
drink of sovereignty, bestowed
upon those of the Teguloktos Rigantona
A Hymn to Rosmerta at the making of a libation
The bull sons pour down
onto the belly of the mare
and under the gaze of the golden
chariot; are fruits borne.
It is your place pour them
and proper for you to provide
them. Into my hands
place them and guide
me in my pouring.
May the libation be good.
Your hand at mine so the oblation may be proper
and the guest honoured.
Rosmerta; guide my pouring.