In Panosophy, which unifies science and spirituality in Wholeness, there is no need to ascribe the attribute holy to any entity. By viewing the Absolute Whole as an aggregation hierarchy, all beings are holons, both wholes and parts of wholes. Thus, nothing and everything is special in the Totality of Existence.
Of course, for practical and psychosocial human purposes, some beings are more significant in our lives than others. But, this does not make any of them holy, including money, as an immortality symbol, and religious beliefs and rituals.
Probably before 1200, holi, from Old English hālig ‘holy, consecrated, sacred; godly; ecclesiastical’, from Proto-Germanic *hailaga-, from PIE base *kailo- ‘whole, uninjured’.