Grove

When you walk through a grove of trees, consider that the word grove has been part of English for centuries; however, no one knows where the word came from.
 
The word grove first appears in records of the late 9th century as Old English graf (a grove, a copse, a small wooded area without underbrush) and is related to Old English graefa (thicket). Before this the origins are unknown. There is no record the word grove in any other Germanic language. This might suggest that the word grove has its origins in the language of the original pre-Germanic inhabitants of what is now England—but who knows?
 
A notable use of the word grove is related to the word academy. In brief, Plato lived in Athens near a grove of olive trees in which he would walk and talk with his students and followers.1 The grove was called Akademos and, in Latin, was known as the Academia (the grove of Akademos). By the mid-15th century, the word Achademie is seen in English as the translation from Latin of the name of the public garden or grove in which Plato’s school was located. Later, achademie, then academy, meant a private school and over time became a generic term for higher education.
 
What about the name Grover? Notably one of the characters on Sesame Street. In English, the name Grover means someone who lives near a grove. In German, a grover is a ditch digger or grave digger (). The word grover does not in a dictionary other than as a surname.  
 
Reference: Online Etymological Dictionary, https://www.etymonline.com/

1 Legends from ancient Greece tell the story of this olive grove which had been presented by the Spartans to the Athenian hero Achilles for his efforts in helping to rescue (or to return) Helen of Troy to the Spartans after the Trojan War. Helen, a Spartan queen who had either been abducted or who had eloped (depending on what version of the story you read) is known to history as ‘the face that launched a thousand ships.’