Outlover

Part of speech: noun

Definitions

1. Someone who loves more deeply or more devotedly than a rival or another person does
2. A person whose affection exceeds that of others in a contest of devotion
3. One who outdoes others in the intensity or constancy of their love for someone

Etymology: "Outlover" is a compound of "out" and "lover," with "out" marking a position beyond some inner boundary. The pattern is familiar from older English formations such as "outsider" and "outcast," where "out-" signals someone standing outside a group or circle. Here, "lover" supplies the core meaning of one who loves, so the combined sense points to a person whose love is directed from outside, rather than from within a shared relationship or household.