la breithe sonas duit = Happy Birthday to you
law breh-huh SO-nuh gwit
You could say "Lá breithe sona duit, a Ed" or "Breithlá sona duit, a Ed".
is é mo lá breithe lá atá inniu ann
Lá na nAithreacha sona (duit). Happy Fathers' Day (to you).
In Irish it would be Lá an Domhain sona duit. (pl. daoibh)In Scottish Gaidhlig it is Là a' Cruinne sona dhut.
Lá na nAthaireacha Sona Duit
Irish (Gaelic): Lá breithe sona, a Anna!Scottish Gaelic: '(Co) là breith sona dhut, a Anna!'or 'Ceann-bliadhna sona dhut, a Anna!'
(Co) Là breith sona dhut, a Bobby, or Ceann-bliadhna sona dhut, a Bobby.
Lá Fhéile Vailintín sona duit [said to one person] Lá Fhéile Vailintín sona daoibh [said to more than one person]
FYI: there is no single language called 'Celtic': it is a family of languages like 'Slavic'.Irish Gaelic: Breithlá sona duit. / Lá breithe shona duit.Scottish Gaelic: Là breith sona dhuit (or dhuibh if formal).Manx: Laa-ruggyree sonney dhyt.Welsh: Pen-blwydd hapus.Breton: Deiz ha bloaz laouen/ Kalz a vloavezhioù all.Cornish: Penn-bloedh Lowen
In Irish it's: bain sult as d'ochtódú breithlá, a dhaideo (bain sult as do 80ú breithlá, a dhaideo)
God be with you: Dia duit May God be with you too: Dia is muire duit That is also what people say to say hello in Irish if you say "Dia duit" the other person should say "Dia is muire duit"
Sona, séanmhar, or gliondrach mean 'happy' in Irish.In Irish 'happy' can be 'séanmhar', 'sona', 'sonasach' or 'meidhreach'.The word most used in Leinster dialect anyway is áthas