The Y with a triangle as in YMCA can be had be putting Dalet, phonecian inverted triangle, together with the corresponding hebrew character. Making the triangle represent the Y Head. Phoenician. P?
The greek corresponde is delta.
The aramaic equivalent is a y.
Hebrew is a early dialect originating from Phoenician with an almost exact equivalence to Phoenician alphabet.
Aramaic was another dialect from Phoenician that went to become the business/diplomatic language of the persian empire, known as the imperial aramaic. Then it diffused to greek and to modern semitic languages.