In Adûnaic, Ar-Abattârik means "Pillar of the World". Ardamin contains the Quenya word Arda ("world"); the element min usually means "one" but in this name, it might also be understood as "pillar" or "tower" (cf. Sindarin minas "tower").
Quenya
ardamin
masculine name. *World Tower
Tar-Ardamin
Tar-Ardamin
Tar-Ardamin was the 19th ruler of Númenor (UT/222). His name seems to be a compound of Arda “world” and min(don) “tower”.