Edward Pothier wrote:
I'd also like to know how to say, "May God grant you many years."
I think a standard "shorthand" method, used often for priestly ordination anniversaries, is Ad multos
orAd multos annos
in a monastery, a monk's feastday is announced at dinner (at the refectory) thus: Pax! Cras recurrit dies onomastica reverendi patris Pauli.
(the community responds: Deo gratias
similarly, in lay terms we could say:
Hodie recurrit dies natalis Gaii Jacobi Smith.
Ad multos annos, vere!