dabogda

1. (in good wishes) may; God grant
   Dabogda bio živ i zdrav! — May you be healthy and well!
   Dabogda sutra sve završili! — May we finish everything tomorrow!
2. colloq. (in curses) may
   Dabogda crkao, lopove jedan! — May you drop dead, you thief!

Usually followed by the l-participle: dabogda bio srećan. For parenthetical "God willing" Serbian uses ako bog da.