ruth
Etymology: Middle English ruthe, from ruen to rue
Date: 13th century
1 : compassion for the misery of another
2 : sorrow for one's own faults : REMORSE

ruthful - full of sorrow: woeful; full of ruth: pitiful

(I did warn you ;)

feck
> You only talk dirty when the Gutter Police are on the road, huh?
irrespective of the way it's used dialectally by the Irish,
feck \Feck\, n. [Abbrev. fr. effect.] 1. Effect. [Obs.]

2. Efficacy; force; value. [Scot. & Prov. Eng.]

3. Amount; quantity. [Scot. & Prov. Eng.]

He had a feck o' books wi' him. --R. L. Stevenson.

The most feck, or The feck, the greater or larger part. ``The feck o' my life.'' --Burns.

feckful - [Scot] 1) efficient, effective 2) vigorous; powerful