The heart and soul of Definitions

It is often forgotten that (dictionaries) are artificial
repositories, put together well after the languages they
define. The roots of language are irrational and of a
magical nature.
-Jorge Luis Borges, Prologue to El otro, el mismo
· Online Etymology [Etymonline]
Lust is what makes you keep wanting to do it,
even when you have no desire to be with each other.
Love is what makes you keep wanting to be with each other,
even when you have no desire to do it.
- Judith Viorst
· the order of words in one of two of parallel clauses [Chiasmus]
· Dictionary of word origins [Behindthename]