Slán

So long, farewell, auf wiedersehen, au revoir, à bientǒt, adiós

Hayes

Sounds better
than goodbye
or So long
but they both imply
departure, a sundering,
an absence

As Gaeilge ‘sé
Go neirígh an bothar leat
wishing fair wind,
good fortune
but a parting still,
not a sweet but bitter pill.