Bip39 Mnemonic. You'd probably then do a fundamental Restoration that has a command similar to the one under. (This command uses a sample wallet file bunlded with BTCRecover) And you ought to have penned it down if you had been hoping to keep a possibility open to revive your accounts. https://getidealist.com/story20587869/bip39-wallet-https-linktr-ee-bip39-5-essential-elements-for-bip39-word-list