試す
ためす · tamesu · JLPT N3 · verb-godan
to attempt
🧪 試 = 言 words + 式 formula: you test a formula by saying it out loud
For the sound, ためす (tamesu) is close to 'tame us': before you can tame a wild horse you have to try. The kanji 試 is also the 試 in 試験 (shiken), which means exam.