Where does “coast guard” come from?

coast guard (English) comes from English guard, from Middle English garde, from Old French guarde, from Old French guarder, from Frankish wardēn, from Proto-Germanic wardāną, from Proto-Germanic *warduz, from Proto-Indo-European wēr- — to burn; to cover, heed, notice; squirrel.

coast guard (English): The organisation or officer enforcing maritime...

Definitions

  1. The organisation or officer enforcing maritime...

Ancestry of “coast guard”, step by step

coast guard traces back through two separate lines of ancestry.

via English guard

StepLanguageWordMeaning
1EnglishguardA person who, or thing that, protects or watches...
2Middle Englishgardeguardianship, safeguarding, covering, authority;...
3Old Frenchguardeprotection; act of protecting; guard; inflection...
4Old Frenchguarderto protect; to guard; to look at
5Frankishwardēnto protect; to guard, protect, watch over; to...
6Proto-Germanicwardānąto guard, protect, watch over
7Proto-Germanic*warduz
8Proto-Indo-Europeanwēr-true
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English coast

StepLanguageWordMeaning
1EnglishcoastThe edge of the land where it meets an ocean,...
2Middle Englishcoste
3Old Frenchcostéside
4Latincostātusribbed
5Latincostaa rib; a side, a wall
6Proto-Indo-Europeankost-
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Germanic *warduz