to crave for	to want sth intensively
to hanker after/ to yearn for	to want sth you cannot have
to covet	to wany to possess sth very much
to defuse	to make a dangerous or tense situation calmer
to placate	to stop someone feeling angry
to conciliate	to end a disagreement between two sides acting friendly towards both of them
to appease	to end a disagreement by giving the other side an advantage that they are demanding
implacable	unchangeable, constant
to rejoice	to be extremely happy
exultant	feeling great pleasure and happiness because of success
jubilant	expressing great happiness, especially at victory
rapture	extreme pleasure or happiness
bliss	perfect happiness
full of joys of spring	cały w skowronkach (idiom)
to be thrilled to bits	nieposiadać się ze szczęścia (idiom)
I feel on the top of the world	jestem wniebowzięty (idiom)
to float/walk on air	być cholernie szczęśliwym (idiom)
to be over the moon	być w siódmym niebie (idiom)