瘍

Phono-semantic compound:

疒 — semantic component, "illness, disease"

昜 — phonetic component, yáng, giving the sound

Originally the character described an ulcerated swelling on the body, a sore that breaks open or festers.

《說文解字》 (Shuowen Jiezi):

「瘍，身腫也。」

“瘍 means a swelling of the body.”

Unlike many 疒-radical characters, 瘍 retains its traditional form in simplified Chinese.

궤양 (潰瘍) — ulcer (medical)

종양 (腫瘍) — tumor

양창 (瘍瘡) — ulcerous sore

양독 (瘍毒) — ulcer infection

Relationship with other medical characters:

瘡 — sores, pustules

癰 — carbuncle

腫 — swelling

潰 — to rupture, to ulcerate

Together these form a semantic field relating to swelling, ulceration, and infectious sores.

Characters sharing phonetic component 昜 include:

陽 (sunlight, yang)

湯 (hot water; soup)

揚 (to raise)

They often share the reading yang.

Classical citations:

《廣雅》 (Guangya)

「瘍，創也。」

“瘍 means a wound.”

《後漢書》 (Book of the Later Han Dynasty)

「病瘍久不瘳。」

“The ulcerous illness did not heal for a long time.”

《素問》(The Yellow Emperor's Inner Classic)

「瘍者，熱所生也。」

“Ulcers arise from heat.”