subtilization

Mane (Îngilîzî)

1. The act of making subtle.
2. (obsolete) The operation of making so volatile as to rise in steam or vapour.
3. refinement; subtlety; extreme attenuation

Hevwate

rarefaction

rarity

underpressure

wateriness

Etîmolojî (Îngilîzî)

Hevwate bi fransî: subtilization

In summary

Compare French subtilization.