Definition of "Lilias"

"Poor little thing! She is very wee and frail, isn't she? Only two months old. We came away from the north, as soon as I was able to travel. She is called Lily." / I remembered Horace having once told me that his mother's name had been Lilias.

1864, Frances Eleanor Trollope, The Tale of Aunt Margaret's Trouble, in All the Year Round, Aug 11th, 1866, page 100

"Lilias! Lilias!" he answered. "Lilias! Where are you?""In the garden," it came back like a sound from a golden flute.

1909, Frances Hodgson Burnett, chapter XXVII, in The Secret Garden