submersible (adj.)youdaoicibaDictYouDict[submersible 词源字典]
1862, from submerse or from Latin submers-, past participle stem of submergere + -ible. As a noun, from 1900, "a submersible craft." Alternative adjective submergible is attested from 1820, from submerge.[submersible etymology, submersible origin, 英语词源]