Definition from Wiktionary, the free dictionary
From Old Irish fil, originally an imperative meaning 'see', from Proto-Indo-European *wel- (“see”), cognate with Latin voltus, face. For the semantic development 'see here' > 'here is' compare French voici and voilà.
- This is a dependent form of tha, which is the present tense of bi. It is used after the particles a and gu. After chan and nach, the contracted form eil is used.
- A bheil thu fuar? - Are you cold? (Older Gaelic: Am bheil....)
- Bha e ag ràth gu bheil ìm air an aran. - He was saying that there is butter on the bread.