Almoni (אַלְמֹנִי) is an indefinite pronoun designating an unnamed person, equivalent to "a certain one," "so-and-so," or "anonymous." It derives from alam (to be silent, hidden) and appears in Ruth 4:1 paired with peloni to designate the unnamed kinsman-redeemer: peloni almoni.
The use of almoni in Ruth 4 is theologically deliberate. The man who refused to redeem Ruth and Naomi — choosing self-preservation over covenant loyalty — remains nameless in Scripture. His anonymity is his legacy. In contrast, Boaz — who redeemed willingly — has his name preserved forever in the genealogy of Christ (Matthew 1:5). Those who serve God's redemptive purposes are remembered; those who refuse fade into anonymity. The almoni stands as a foil for Christ, the true Kinsman-Redeemer who gave everything to redeem His Bride.