The Enchanted Island of yew by L. Frank Baum The Little Shepherd of Kingdom Come by John Fox Jr.
The needles of the yew tree can kill you, but the bark is important for many modern drugs.
Old English iw, eow "yew," from Proto-Germanic *iwa-/*iwo- (cf. Middle Dutch iwe, Dutch ijf, Old High German iwa, German Eibe, Old Norse yr), from PIE *ei-wo- (cf. Old Irish eo, Welsh ywen "yew"), perhaps a suffixed form of *ei- "reddish, motley, yellow." OED says French if, Spanish iva, Medieval Latin ivus are from Germanic (and says Dutch ijf is from French); others posit a Gaulish ivos as the source of these. Lithuanian jeva likewise is said to be from Germanic. The tree symbolizes both death and immortality, being poisonous as well as long-lived.