試し着ちゃく

し

ちゃ

く

Common wordJLPTN3Freq.FrequencyTop 20,000

Meanings

1

noun, noun or participle which takes 'suru', transitive verb

trying on clothes; fitting

Used for trying on clothes, shoes, accessories, etc. before purchase or to check fit. Commonly used as a suru-verb (試着する).

試ためす
試す means to test or try something in general, while 試着 is specifically for trying on wearable items.
着きる
着る simply means to wear or put on clothes; 試着 adds the nuance of trying on for fit or evaluation.

Compound of 試 (try, test) and 着 (wear, put on). The reading is on'yomi for both characters.