spend-

The root *spend- occupies a distinctive semantic position at the intersection of ritual practice and legal obligation. The act of pouring a libation (a religious ritual) and the act of making a solemn pledge (a legal commitment) are encoded in the same root, suggesting that in PIE culture, contractual obligations were ratified through ritual pouring. Latin spondēre ("to pledge solemnly, to promise") yields an extensive legal and social vocabulary: sponsor ("one who pledges"), spouse (from sponsus/sponsa, "one who has been pledged"), response (respondēre, "to pledge in return"), responsible, correspond, and despondent (dēspondēre, "to give up, to lose heart," literally "to pledge away"). Greek spéndō (σπένδω, "I pour a libation") preserves the ritual sense more directly. The noun spondḗ (σπονδή, "libation") gives spondaic (a metrical term, because the spondee was the rhythm associated with libation songs). The plural spondaí ("libations") came to mean "treaty, truce" — since treaties were sealed with libations. This semantic development, ritual pouring > solemn agreement, is the key to understanding the unity of the root. The Germanic reflex is debated. Old English spannan ("to clasp, to fasten") and possibly Modern English span have been connected, though the semantic distance from "pouring" to "clasping" requires intermediary steps. The cultural significance of *spend- lies in its testimony to the role of ritual in PIE legal institutions. The inseparability of libation and oath in the reconstructed vocabulary suggests a society in which contractual obligations had an inherently sacred character — a pattern widely attested in early IE cultures from Vedic India to archaic Rome.