what does the irish-gaelic word --- bail --- mean?

Answer 1

It depends on the context, it can mean prosperity, proper condition, version, state, treatment, or validity.

Bail ó Dhia oraibh: God prosper you.
Cuir bail ar and teach: Put the house in order (or good condition).
Chuir sé a bhail féin ar an scéal: he told his own version of the story.
Ar bhail na ngrást: In a state of grace.
Thug sé bail na madraí orm: He treated me like a dog.
Ionas go mbeadh bail ar a fhaoistin: So that his confession might be valid.
Gan bhail: invalid, void

Answer 2

n bailiú = collection;
báille = bailiff; writ-server
theres no word 'bail'

Answer 3

a valley with water