Ablative (&unr_;), a. [F. ablatif, ablative, L. ablativus fr. ablatus. See Ablation.] 1. Taking away or removing. [Obs.]
[1913 Webster]

Where the heart is forestalled with misopinion, ablative directions are found needful to unteach error, ere we can learn truth. Bp. Hall.
[1913 Webster]

2. (Gram.) Applied to one of the cases of the noun in Latin and some other languages, -- the fundamental meaning of the case being removal, separation, or taking away.
[1913 Webster]