Where does “شب قدر” come from?

شب قدر (Classical Persian) comes from Classical Persian قدر, from Arabic قَدْر — value, worth; quantity, amount, size.

Ancestry of “شب قدر”, step by step

شب قدر traces back through two separate lines of ancestry.

via Classical Persian قدر

StepLanguageWordMeaning
1Classical Persianقدر—
2Arabicقَدْرvalue, worth; quantity, amount, size

via Classical Persian شب

StepLanguageWordMeaning
1Classical Persianشب—
Every word from Arabic قَدْر →Every word from Classical Persian قدر →