rock, crag, cliff echo 1 realization
NEW Realization 1
Type Derivation
Language Middle Irish
Lexeme 1 alla
Lexeme 2 mac alla
Meaning 1 cliff
Direction
Meaning 2 echo
Reference <personally collected data>
Comment

 literally “son of a cliff”. Modern Irish Gaelic macalla 'echo'. Also Irish Gaelic allabhair, Old Irish allabair 'echo' sometimes explained as alla 'cliff' +‎ labair 'speak' or ath- 're-, again' +‎ labair 'speak', but these may be folk etymologies.