Aconitum, aconíti, pen. prod. nig. A venimous hearbe, whereof there be two kinds: oue hath leaues like a cucumber but lesse and rough, the stalke a handfull high, the roote like the taile of a Scorpion, and white like alabaster. The other kinde hath leaues like a plane tree, but the diuisions thicker, the leafe longer and blacker: a stalke like ferne, one cubite in height: the seedes in long cods, the rootes blacke and like the hornes of a shrsmpe. Turner sayth one kind may be called libardbaine, the other woolfbaine. In dutch it, is called woolfmort. Aconitum. Aconita dira. Ausonius. Pallida. Lucanus. Lurida.Ouid. Viuacia. Ouid.
Lewis and Short: Latin dictionary
ăcŏnīti, adv., = a)koniti/, without labor (lit. without dust, the figure taken from the athletae, Hor. Ep. 1, 1, 51), Plin. 35, 11, 40, 139.