What does Pilar mean?
A Marian devotional name from 'María del Pilar', Our Lady of the Pillar — commemorating the tradition that the Virgin appeared to Saint James standing on a pillar in Zaragoza. Pilar is simply the Spanish word 'pillar, column', from the Latin pila.
What does Paloma mean?
The Spanish word for 'dove', from the Latin palumbes 'wood pigeon, dove'. It carries a Marian and Christian resonance (the dove as a symbol of the Holy Spirit and of peace) and appears in the title Virgen de la Paloma.