διαβάλλειν (dia-ballein) "Dia" means through (by the way of; or from one end or side of something to the other (across); or between) and "ballein" means throwing.
Now online there are two descriptions that I found most often to describe the meaning of this word:
Looking at the pure etymology of this word; how did the word dia-ballein transform from 'through throwing' into something accusatory or divided?
dia comes from { di > dy > du } , meaning: duo, two, 2, in contrast to { bi > by > [b:u] } which are already (in some manner) split, but kept together in parallel. Therefore as a logismus one stands like something split in origin; in two, and the other: brought in parallel.
For instance: diagonal, would mean to take a route which splits some existing gamma or angle in two parts.
So, dia depending on the notion it is applied to tends to signify a second hand, route, way; in contrast to a, common; straight; direct; ordinary, or conventional preexisting way.
Herein διαβάλλειν would mean "to throw over" but that's only because of gravity and because while standing on the ground - you cannot, throw under. This expression is however capable of covering every parable-like throw, between two points which are invisibly connected by the shortest path between them.
