泳ぐ
およぐ · oyogu · JLPT N5 · verb-godan
to swim
🏊 泳 = water (氵) + long/eternal (永): a long stretch through water
The left side 氵 is the water radical; the right side 永 means long-lasting and also gives the reading. For the sound: oyogu starts like oh-yo, a greeting you shout before going in the pool.