“did robert heinlein invent the work grok ?”

https://grok.com/?q=did+robert+heinlein+invent+the+work+grok++%3F
“did robert heinlein invent the work grok ?”
"Yes, Robert A. Heinlein did invent the word "grok." He introduced it in his 1961 science fiction novel Stranger in a Strange Land. In the book, "grok" is a Martian word that roughly translates to understanding something or someone deeply and intuitively, often implying a profound empathy or connection. Heinlein created the term, and it has since entered popular culture, even finding its way into some dictionaries due to its widespread use. Pretty cool legacy for a writer, right?"
Way cool !
Lynn