So, does a christening ceremony simply involve the “name this child” process, but without the involvement of a font?
As far as I understand things, yes.
The meaning of the term Baptism refers to the Christian religious rite of sprinkling water on to a person's forehead or of immersing them in water, symbolizing purification or regeneration and admission to the Christian Church. In many denominations, baptism is performed on young children and is accompanied by name-giving.