Définitions
1.NounThe single or split (then rather plural) bottom part of a shirt, below the waist, especially in the back, which, when not tucked into trousers or other vestment, hangs over the wearer's tail-end, like a tail.
2.NounThe tail-end or periphery of something.
3.NounA tenuous connection.
4.NounA distant kinship.
5.NounA small portion
6.NounSomething small and unimportant.