Similar to quadrum
- quadruplator – an exaggerator, informer
- quasi – a sort of, as if, as it were, just as, just as if
- quadrivium – crossroads, place where four roads meet, second stage of the medieval curriculum
- quadra – dining table
- quamobrem – for which reason, on which account, why
- quadraginta – forty
- quater – again and again, four times