Bip39 Electrum. These words are then employed to make a seed, that is useful for making extended keys in a very hierarchical deterministic wallet. As you could see, these are typically common words that are very easy to store or bear in mind. It's not necessarily encouraged to remember them, https://bookmark-nation.com/story18834946/bip39-npm-an-unbiased-view-of-bip39-recovery-phrase