Oups I added an extra f : lixiviaction. So it was my phone that change it because it just change it a second tome. It is a french word but I imagine it could also exist in english build the same way. It is the extraction of soluble principale by washing. From latin “lixivius”. To leach. I found a wiktionary page for it : https://en.wiktionary.org/wiki/lixiviate#English

I love this!!

Then the french equivalent would be « anticonstitutionnellement » which is the longuest word in the french language (counting lettres).

It is funny that many formal or litteray vocabulary in english comes from French or have latin roots. As a french speaker, it is much easier to guess a new english word when it is formal speech.

I don’t care for esoterism but I love words and I keep a journal where I note any new words I learn, nice proverbs and citations and anything I find pretty. It is basically my personnal dictionary.
One of my last entries was : lixivifaction.