What does abhor mean?
The definition of abhor
Ab*hor”, v. t.
[imp. & p. p. Abhorred; p. pr. & vb. n. Abhorring.]
Etym: [L. abhorrere; ab + horrere to bristle, shiver, shudder: cf. F. abhorrer. See Horrid.]

1 To shrink back with shuddering from; to regard with horror or detestation; to feel excessive repugnance toward; to detest to extremity; to loathe. Abhor that which is evil; cleave to that which is good. Rom. xii. 9.
2 To fill with horror or disgust. [Obs.] It doth abhor me now I speak the word. Shak.
3 (Canon Law)
To protest against; to reject solemnly. [Obs.] I utterly abhor, yea, from my soul Refuse you for my judge. Shak.

Synonyms
— To hate; detest; loathe; abominate. See Hate.

Ab*hor”, v. i.
To shrink back with horror, disgust, or dislike; to be contrary or averse; — with from. [Obs.] “To abhor from those vices.” Udall. Which is utterly abhorring from the end of all law. Milton.