ogham
/ˈɒgəm/(亦作ogam)
noun
mass noun
1- an ancient British and Irish alphabet, consisting of twenty characters formed by parallel strokes on either side of or across a continuous line欧甘字母表（一种古英国和爱尔兰文字, 由20个字母组成）。
1.1
- count noun an inscription in this alphabet欧甘文碑铭。
1.2
- count noun each of its characters欧甘文字母。
词源
early 18th cent.: from Irish ogam, connected with Ogma, the name of its mythical inventor.