quickener

plural quickeners

1. One who, or that which, quickens, hastens, or speeds up an object or action.

   Synonyms: catalyst

2. That which gives life, animates, or nourishes.

   Where, through the deep, rich soil enwound, The waters of Dirce flow? Nourisher she of man and mead, Quencher of thirst and quickener of seed;

   1922, “The Seven against Thebes”, in Geoffrey Montagu Cookson, transl., Four Plays of Aeschylus, page 124