1) Used as a name for a bovine animal with a white tail.
1412 lego Johanni Rihell vnam vaccam que vocatur Tagill, Winestead
1588 twoe kye called Taggelde and Cherie, Hudswell
1670 to my doughter Mary ... [a] tagel why in ful for a portion, Brayton
1707 Tagill Buld June the 11th, Conistone. This can be compared with flowerill, raggled, spangled, sterneld and possibly featherill. See also NH144-9.