Aorist Aspect (definition)
Aorist aspect is used to characterize an action, without specifying the duration, completion or time of the event. In Gaelic the Aorist is not morphologically marked.
Be careful with wikipedia Links, they often contain inaccurate information. http://en.wikipedia.org/wiki/Aorist
Crystal,David (2008). A Dictionary of Linguistics and Phonetics Sixth Edition. Blackwell Publinshing Ltd.