ogham

noun

ˈä-gəm  ˈō-  ˈō(-ə)m 

variants or ogam

: the alphabetic system of fifth and sixth century Irish in which an alphabet of 20 letters is represented by notches for vowels and lines for consonants and which is known principally from inscriptions cut on the edges of rough standing tombstones

oghamic

ä-ˈgä-mik 

ō-;

ˈō-(ə-)mik 

adjective

oghamist

ˈä-gə-mist 

ˈō-;

ˈō-(ə-)mist 

noun

Word History

Etymology

Irish ogham, from Middle Irish ogom, ogum

First Known Use

1729, in the meaning defined above