All rarefy synonyms

verb rarefy

• emaciate — (transitive) To make extremely thin or wasted.
• fade — to lose brightness or vividness of color.
• fagged out — exhausted
• clarify — To clarify something means to make it easier to understand, usually by explaining it in more detail.
• distil — (transitive) Subject a substance to distillation; .
• distill — to subject to a process of vaporization and subsequent condensation, as for purification or concentration.
• die away — If a sound dies away, it gradually becomes weaker or fainter and finally disappears completely.
• attenuate — To attenuate something means to reduce it or weaken it.
• depurate — to cleanse or purify or to be cleansed or purified
• aways — to cease to live; undergo the complete and permanent cessation of all vital functions; become dead.
• boil down — When you boil down a liquid or food, or when it boils down, it is boiled until there is less of it because some of the water in it has changed into steam or vapour.
• evanish — (archaic, intransitive) To vanish.