itch
https://gyazo.com/5eb417cc5f2acee3cc9eae8d6b79f6b7
noun usually in singular
an uncomfortable sensation on the skin that causes a desire to scratch.
〖通例単数形で〗かゆいこと, かゆみ
usually with modifier a skin disease or condition of which itching is a symptom.
informal a restless or strong desire:
｟くだけて｠ 〖通例単数形で〗 «…したいという/…に対する» (むずむずするような)熱望, たまらなさ «to do/for»
e.g. with infinitive : the itch to write fiction.
(the itch) informal scabies.
〖the ～〗 疥癬（かいせん）, 皮癬（ひぜん）
verb no object
be the site of or cause an itch:
〈服･炎症などが〉かゆみを感じさせる, ちくちくする
e.g. the bite itched like crazy.
(of a person) experience an itch:
〈人･体(の部分)が〉かゆい
e.g. I itched all over.
informal feel a restless or strong desire to do something:
｟くだけて｠ ; 〖通例be ～ing to do/for A〗 …したくて［Aが欲しくて］たまらない
e.g. with infinitive : your hands itch to take the wheel.
ORIGIN
Old English gycce (noun), gyccan (verb), of West Germanic origin; related to Dutch jeuk (noun) and Dutch jeuken, German jucken (verb).