The Arcado-Cypriot Greek word ζέρεθρον
Word ζέρεθρον
z e. r e tʰ r o n
IPA ze.retʰron
Meaning cleft, abyss, gulf, pit
See also Homeric Greek: βάραθρον ‘gulf, pit’
Ancient Macedonian: ζέρεθρον ‘cleft, abyss, gulf, pit’