Hereat is a rarely used word that means "at this point" or "with regard to this." While it may not be common, it is still possible to find synonyms that can convey the same meaning. Some of the best alternatives include "thereupon," "in view of this," "consequently," "thus," and "accordingly." These words all imply a sense of consequence or result, suggesting that what follows is a direct result of what has just been mentioned. Other possible synonyms include "as a result," "therefore," and "henceforth." While words like "hereat" may be uncommon, a good vocabulary is all about finding the right ways to express yourself, so it's essential to keep exploring new options.