Kindness, affection, favour.

compilation, composition, bringing together, reconciliation, consolation

compile, compose (a book, etc.)

uniting hearts in friendship, giving solace and comfort

an epic compilation

uniting hearts in friendship, conciliating or winning hearts, or the art of doing so

assuage

compilation

(Rhetoric) the construction of a sentence, to be wrong or weak according to the grammatical rules, as well as to be against the idiom

under composition, being compiled