Well ok your thingy says athiest means godless.
Wiki says its more complicated...
http://en.wikipedia.org/wiki/Atheism#Etymology
[9]
In early Ancient Greek, the adjective atheos (ἄθεος, from the privative ἀ- + θεός "god"😉 meant "godless". The word acquired an additional meaning in the 5th century BCE, severing relations with the gods; that is, "denying the gods, ungodly", with more active connotations than asebēs, or "impious". Modern translations of classical texts sometimes translate atheos as "atheistic". As an abstract noun, there was also atheotēs (ἀθεότης😉, "atheism". Cicero transliterated the Greek word into the Latin atheos. The term found frequent use in the debate between early Christians and pagans, with each side attributing it, in the pejorative sense, to the other.[10]
for example atheist was seen as an abstract term...also it seems pagans and Christians called each other athiests.
Originally posted by inimalist
like conservative, or incredible. The use of those hasn't changed one bit from their origins...
It seems to be hard to track down what it orignally meant. It seems one of its early defintions was pagan.