It was bitter enough for Lily to ask a favour of Grace Stepney, but the alternative was bitterer still; and one morning she presented herself at Mrs. Peniston’s, where Grace, for the facilitation of her pious task, had taken up a provisional abode.
She herself had grown up without any one spot of earth being dearer to her than another: there was no centre of early pieties, of grave endearing traditions, to which her heart could revert and from which it could draw strength for itself and tenderness for others.
There are no more uses of "pious" in the book.
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The cartoon with a drawing of Muhammad outraged many pious Muslims.
Her piety required her to help her neighbors who were in need.