Where does “haptonastic” come from?

haptonastic (English) comes from English haptonasty, from English hapto-, from Ancient Greek ἅπτω, from Proto-Hellenic *áptō.

haptonastic (English): Of or relating to haptonasty

Definitions

  1. Of or relating to haptonasty

Ancestry of “haptonastic”, step by step

haptonastic traces back through two separate lines of ancestry.

via English haptonasty

StepLanguageWordMeaning
1EnglishhaptonastyA nastic response to touch
2Englishhapto-attachment or binding; adhesion
3Ancient Greekἅπτωto kindle, set on fire, fasten fire to; to fasten...
4Proto-Hellenic*áptō

via English ic

StepLanguageWordMeaning
1Englishicrelated or pertaining to; having the character of
Every word from Proto-Hellenic *áptōEvery word from Ancient Greek ἅπτωEvery word from English hapto-