alátámasztják
Alátámasztják is a Hungarian verb form meaning “they substantiate” or “they back up with evidence.” It is the third-person plural present indicative active form of the verb alátámasztani, which means to substantiate, to support a statement or claim with evidence. The prefix alá- combined with támasztani conveys the sense of underpinning or reinforcing something with support.
In use, alátámasztják requires a direct object that designates what is being supported, such as a claim,
Etymology and nuance: alátámasztani combines alá- (“under”) and támasztani (“to support”), creating a sense of underpinning