From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( a.) Affecting; moving; pathetic; as, a touching tale.

(2): ( p. pr. & vb. n.) of Touch

(3): ( n.) The sense or act of feeling; touch.

(4): ( prep.) Concerning; with respect to.

King James Dictionary [2]

Touching, ppr. tuch'ing. Coming on contact with hitting striking affecting.

1. Concerning relating to with respect to.

Now as touching things offered to idols--  1 Corinthians 8

2. a. Affecting moving pathetic.

Touching, n. tuch'ing. Touch the sense of feeling.