The closest synonym I know to love is sacrifice. There is no room for selfishness in real love. Because love doesn't ask "What's in it for me?" or even, "How can I show this person I love them?" Rather, it asks, "What can I do to make this person's life better?" and "How will my actions make this person feel?" Love always considers the beloved.
We see the ultimate form of this love expressed
in the passion of Christ. It is this act of seeking the good for
another that continually binds two together as one. It is at the heart
of a mother's love for her child. It is the reason a true friendship
lasts forever. We were designed to love and be loved this way, but most
of us settle for selfish, superficial, and fleeting leaving us always in
search of the next "high" instead of being made whole through loving in
a way that is sacrificial, transcendent, and eternal.