Webster's Revised Unabridged Dictionary · 1913

Altruism

Altruism ({not transcribed}) , noun

[French altruisme (a word of Comte's), Italian altrui of or to others, from Latin alter another.]

Regard for others, both natural and moral; devotion to the interests of others; brotherly kindness; -- opposed to egoism or selfishness. [Recent] — J. S. Mill