watchful, vigilant in Sindarin?

What is "watchful, vigilant" in Sindarin? I know it's tirítë in Quenya (according to our translator at least). It's the translation of my name and I'm curious what it'll be.

It is not entirely clear whether or not the Quenya suffix -ite has an equivalent in Sindarin, though it might possibly be observed in N. nîd < ✶neiti √NEJ, so perhaps a direct cognate, tirid, may be possible.

Alternatively, and perhaps the safer bet, would be tíreb.

I forgot to mention - at least as far as Elvish names go, a plain adjective cannot be used as a name. You might need to form some kind of compound from it, or add an agental suffix or some such.

Hm. Neither are terribly inspiring lol

Hm. An agental suffix? I suppose I've personally glossed my name as "Watchman", being a fan of Star Wars EU where they had Jedi Watchmen. What would that translate to? Tirindir?

"Watch-man" can be rendered as Tirnir or Tirdir (note that in this context man = male person).

Hm. Both sound rather repetitive. Tirwe perhaps? Though this seems to be a reconstruction from older, Quenya names (i.e. Manwë>Manwe, per www.elfdict.com

This seems to have mutated into simply "u" as in Elu. Tiru? Ick. I'll stick with Tirwe.

pen/ben seems to mean "one, somebody, etc.". Tíreben? Tírebpen? Tirben?

Tirwe is not possible in Sindarin.

With pen you can have Tirben as a late compound or Tirphen as an earlier compound.

Hm...Tirphen sounds better. Is there another masculine or neuter agental suffix?