I have read that Vedic Sanskrit had five grammatical moods a verb could take; indicative, optative, imperative, subjunctive, and injunctive; four of them I understand the function of through other languages; but what did the injunctive mood do?
The indicative mood declared something to be the case. The optative indicated a hopedor wished for event. The imperative ordered someone to do something. The subjunctive talked about things that are not necessarily real. But what did the injunctive do? What was its function?