Mckenna

From the Gaelic surname Mac Cionaodha, which means "son of CIONAODH".

CIONAODH   male   Irish
Modern Irish form of CINÁED.
CINáED   male   Scottish, Irish
Means "born of fire" in Gaelic. This was the name of the first king of the Scots and Picts (9th century). It is often Anglicized as Kenneth.
EQUIVALENTS
ENGLISH: Makenna
OTHER FORMS
DANISH: Kennet, Kenneth
ENGLISH: Ken, Kendra, Kenith, Kenneth, Kennith, Kenny
IRISH: Cináed, Cionaodh
NORWEGIAN: Kennet, Kenneth
SCOTTISH: Cináed, Kenina, Kenna, Kenneth, Kenny
SWEDISH: Kennet, Kenneth