Etymology
Arabic Words in English: Borrowing and Word Histories

English word histories reflect contact among languages. Arabic connections are visible in scientific and mathematical vocabulary, but the route into English often involves other languages and should not be reduced to a simple one-step story.
Algebra
The history of algebra connects the word with Arabic al-jabr. When studying the word, distinguish the history of its name from the much wider history of mathematical practices. A borrowed term does not establish that every idea associated with the subject came from one place.
Algorithm
Algorithm ultimately connects with the name of al-Khwarizmi, a Persian mathematician whose work formed part of an Arabic-language scholarly tradition. This example shows why language, personal identity and the route of a borrowed word are different questions.
Direct and indirect borrowing
A word can have an Arabic ancestor but reach English through Latin, French or another language. An etymology should identify the stages supported by the dictionary rather than skipping intermediate forms for a simpler story. Different words have different routes.
Avoid the prefix shortcut
Some borrowed forms preserve elements associated with the Arabic definite article, but an English word beginning with al is not automatically Arabic. Check the complete etymology. The appearance of the first two letters cannot establish a historical relationship.
Build an evidence-based vocabulary note
Record the English word, its present meaning, the dictionary’s etymological chain and an example of current use. Separate those facts from a broader cultural explanation you would need another source to support.
Try a comparison
Look up algebra and algorithm side by side. Note that one history concerns a term and the other involves a personal name. Write an explanation of that difference in your own words, keeping the borrowing route separate from your example sentence.
Sources and further reading
Apply what you learned
If an English word has an Arabic ancestor, must English have borrowed it directly from Arabic?
Show answer and explanation
No. It may have passed through other languages.
Distinguish an earlier origin from the immediate donor language. Check the chain in an etymological dictionary before describing a word as a direct loan.