Irish: deirfiúr
Scottish Gaelic: piuthar
Welsh: chwaer
In Irish it's "deirfiúr óg"
you can find one at a shop called "Lallic" in New York city. they are a Celtic shop and do all of the Celtic symblos. Lallic means to symbolize in Celtic speak.
The tribal sisters symbol is depicted as two women surrounded by a circle. A circle signifies family ties, closeness & protection. The Celtic symbol for sister is the Celtic Sisters Knot in the shape of Celtic heart.
In Irish it's "fiáin"
Yes Aiden Mcgeady does have a sister because in my Celtic Annual 2010 it says his first holiday was in Greece when he was 4 with his sister before his younger brother was born!
the triqueta is said to be a symbol to represent the bods of sisterhood http://stores.theirishjewelrycompany.com/-strse-320/sister-sisters-sister%27s-knot/Detail.bok?gclid=CIyApbH2mZMCFQJtFQodcV
The tribal sisters symbol is depicted as two women surrounded by a circle. A circle signifies family ties, closeness & protection. The Celtic symbol for sister is the Celtic Sisters Knot in the shape of Celtic heart.
The typical Celtic symbol for brotherhood is the arrow, often depicted through traditional Celtic knotwork designs. It was believed warriors were the 'brothers of the arrow.' It is important to note many Celtic symbols are based on modern artist's designs as opposed to true Celtic tradition.
In Irish it's feall / brath
I don't know if 'Green man' actually is used in Celtic languages. The wikipedia article mentions an ancient Celtic god called Viridios which may derive from 'green'.
'without an end' or 'by ourselves'
There are some but not many words that can be used in place of small sister. Younger sister can be used in place of small sister. As can little sister.