। ॥ ४९ ॥
In plain words
No word in the language begins with ḷa — so let the word that carries it at its end, maṅgaḷa, auspiciousness, stand here always, O Lord who fills everything. Sāmba, Sadāśiva, Śambhu, Śaṅkara: your two feet are my refuge.
Close to the Sanskrit
Indeed there is no usage beginning with ḷa; let the auspiciousness (maṅgaḷa) that has that letter at its close be here always, O all-pervading one. O Sāmba, O Sadāśiva, O Śambhu, O Śaṅkara — your pair of feet is my refuge.