itch

Concise Oxford English Dictionary © 2008 Oxford University Press:
itch/ɪtʃ/

▶noun

• 1 an uncomfortable sensation or condition that causes a desire to scratch the skin.

• 2 informal an impatient desire.

▶verb

• 1 be the site of or experience an itch.

• 2 informal feel an impatient desire to do something.

– phrases
an itching palm an avaricious nature.

– origin OE gycce (n.), gyccan (v.), of W. Gmc origin.