guard
UK[ɡɑːd]US[ɡɑːrd]
v
To watch over and protect someone or something to keep them safe.
n
A person, especially a soldier or police officer, who protects a place or people.
n
A state of being watchful and protective against danger or trouble.
Etymology
The word 'guard' entered English via the Norman Conquest, borrowed from the Old French 'garder'. Its ultimate origin lies in the Proto-Germanic root 'wardōną', meaning 'to watch over, protect'. This root is also the source of the native English word 'ward', creating a fascinating doublet in the language where the Norman French 'g-' form ('guard') and the Anglo-Saxon 'w-' form ('ward') coexist. The semantic core of watching and protecting has remained remarkably stable from its ancient Germanic origins through its French intermediary and into modern English usage. The word's journey reflects the layered history of the English language itself.
Analysis
The modern English word 'guard' is a simplex form. Its core spelling and sound derive from the Old French 'garder' (to watch, keep, protect), which itself came from Frankish (a West Germanic language) 'wardōn', sharing a common Proto-Germanic origin with the native English word 'ward'.
Examples
The soldiers were ordered to guard the entrance to the palace.
He works as a security guard at the museum.
You should guard against making hasty decisions.