John's Feast-day wort: the Manx name for mugwort, the protective herb gathered at midsummer. The name itself demonstrates the accommodation: a Christian saint's name attached to a plant gathered for pre-Christian protective purposes. The bollan bane was gathered on Midsummer Eve, woven into chaplets, and worn to ward off enchantment. The following morning the people gathered at Tynwald, the herb still pinned to their clothes.