Synonyms for Allaying:

adj.

alleviating (adjective)
easing, reducing, Mitigating, Relieving, moderating, Palliating, Assuaging, Alleviating, soothing.

v.

alleviating (verb)
lessening.
calming (verb)
composing, appeasing, consoling, pacifying, cooling, Quieting, lulling, tranquilizing, calming, placating, Stilling, sedating, quelling.
pacifying (verb)
conciliating, ebbing, Hushing, Smoothing, defusing, Mollifying, stabilizing, softening, reconciling.
satisfying (verb)
Engorging, satisfying, quenching, Satiating, filling, Saturating, gratifying, stuffing, Glutting, Slaking, Sating, Gorging.

Other synonyms:

Other relevant words:
Alleviating.