Lares is Latin, not English. The name of the creche in a Roman home where the family gods sit in state, or by connotation the family gods themselves.
The Wordle is clearly inspired by Jotto, but it gives a significant advantage to the player by telling after each guess whether a letter is found in the word (it turns gold) is not in the word (grey) or is already in the correct position (green). In this it follows the rules of an old TV show here in the US, Lingo. Every wordle is soluble in six guesses provided you are making efficient use of each guess and recognize the solution word. Partly because we only have six written vowels, and seven of our consonants are found in more than 5% of words. You do not get endless guesses, therefore, if you don't have it in six you've lost for the day. According to the App, I have played 171 games of Wordle and lost 11 of them.
The possible solutions are drawn from a dictionary of 2,309 "common words" a large set but smaller than what one would find in a dictionary. One more small kindness is that if the game does not recognize the word you submitted, it does not accept that guess, so you get no new information but are effectively given a do-over.
The case you suggest, with many equally possible solutions remaining with one letter left, is indeed alarming. One can rely on a few things, though. Previous guesses should already have either confirmed or eliminated T, L, N, C and H, the other common consonants, or your next guess should. I've never known a Wordle solution to be a simple plural either, so I would take quite a few of those guesses off the table. Actually all of them! This would be an unlikely scenario.
One has other tricks in the bag, though. Even without looking it up in the Wordle dictionary, I would further guess that it is unlikely to be Eares, Oares, or Pares, Tares, Vares, or Lares, as all are very uncommon words and probably aren't possible solutions. If on one's last guess, with too little information to help, you've already made your mistakes but go with whichever word is most often used and hope for the best.