In context, would this be used like "Shhh... listen"- as a command as it were in English? "Shhhh... eisteann tu"?
Irish has a separate command tense , the imperative form. The infinitive form of the verb -eist- is used for the 2nd person singular command. -eisteann is present habitual case
I've heard lots of people saying what sounded like whisht, for shush, now i realise it comes from the word for listen, aye