Ogham Letter Q - Ceirt (Queirt)
Ceirt (Queirt) ᚊ (Primitive Irish cert) is a letter of the Ogham alphabet, transcribed as Q.
It expresses the Primitive Irish labiovelar phoneme. The 14th century Auraicept na n-Éces glosses the name as aball, meaning "apple tree". Its phonetic value is [kʷ].
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