English is a language of borrowed words; but where do they come from?
Take the word, flower.
According to the Online Etymology Dictionary the word flower came into the English language in the 12th century from the French fleur.
Other European languages use similar words e.g. the Italians say fiore and the Spanish say flor. All are from the Latin root florem
Flower is the blossom of a plant. Don't confuse the spelling with flour which is finely ground grains and used for cooking.
To confuse things even more flour was spelled flower in English until about 1830.