1 source (of information etc)

2 origin

1 to provoke

2 to irritate

3 to upset

4 to stimulate

5 to excite

6 irritant

1 to be grateful

2 to appreciate

3 thankful

1 has its origins in

1 to move emotionally

2 to stir up (emotions)

3 to excite

1 lit. to strike water right and left (idiom)

2 fig. to turn everything into gold

3 to have everything going one's way

4 to benefit from both sides

1 can't thank sb enough (idiom)

1 to shed tears of gratitude (idiom); moved to tears

1 lit. drain away filth and bring in fresh water (idiom); fig. dispel evil and usher in good

2 eliminate vice and exalt virtue

1 a steady flow (idiom); an unending stream