Venmo was inspired by a dead language.
Andrew Kortina, founder of the digital-payments app, writes on Quora:
"When we were brainstorming names, one of the roots we were exploring for inspiration was the Latin, vendo/vendere, 'to sell.' As soon as we said venmo, we liked it because it was short and made for a good verb: 'Just Venmo me for dinner.'"
"Roth takes Soylent's oceanographic reports to a group of researchers, who agree that the oceans no longer produce the plankton from which Soylent Green is reputedly made, and infer that it is produced from human remains, the only conceivable supply of protein matching the known production."
Hope this is not what is the protein in Soylent :O