Why this word is great
REDAMANCY — [Noun] The act of loving in return; perfectly reciprocated love. From the New Latin redamantia, from the Classical Latin redamō ("to requite love"), combining re- ("again, back") and amō ("I love"). Unlike "unrequited" (describing love that is not returned) or "devotion" (implying loyalty without reciprocity), redamancy is the rare symmetry of affection—a closed circuit of feeling. It is the glance met precisely halfway across a room, the letter answered word for word, the way two candles, burning side by side, cast a single, doubled light. A condition so simple, so vanishingly rare, it feels like a law of physics suspended.