वक्षाः ।अस्य वक्षसि श्रीरनपायिनी वसतीति श्रीवासः ।अमृतमथने सर्वान् सुरासुरादीन् विहाय श्रीरेनं पतित्वेन वरयामासेति श्रीपतिः ।श्रीः परा शक्तिः, तस्याः पतिरिति वा, 'परास्य शक्तिर्विविधैव श्रूयते' इति श्रुतेः ।ऋग्यजुःसामलक्षणा श्रीर्येषां तेषां सर्वेषां श्रीमतां विरिञ्च्या
In plain words
He is Śrīvatsavakṣas because the Srivatsa mark rests upon his chest. He is Śrīvāsa because the ever-faithful goddess Lakshmi dwells upon his bosom. He is Śrīpati because, during the churning of the ocean, leaving aside all the assembled gods and demons, Lakshmi chose him alone as her lord. Or else, he is Śrīpati because he is the master of Śrī, the supreme divine energy, as scripture declares: 'His supreme power is heard to be manifold.' Of all those illustrious ones endowed with the sacred lore of the three Vedas, led by Brahma...
Close to the Sanskrit
Śrīvatsavakṣas, because the mark called Srivatsa is situated on his chest. Śrīvāsa, because the non-departing goddess Lakshmi resides upon his chest. Śrīpati, because during the churning of the ocean, passing over all the gods and demons, Lakshmi chose him as her husband. Or Śrīpati, because he is the lord of Śrī, the supreme power, as the shruti says 'Supreme is this power of his, declared to be manifold.' Of all those illustrious ones possessing the Sri characterized by Rig, Yajus, and Sama Vedas, headed by Brahma...