Bip39 Checksum. The wallet handles the heavy lifting of converting the mnemonic words through a means of elaborate hashing, salting, and checksum functions into a binary "seed," and that is then utilized to produce the all-vital private and general public encryption keys. For words that only have three letters, there's https://lombok-directory.com/listings13081209/bip39-tool-https-linktr-ee-bip39-rumored-buzz-on-bip39-standard