A new word or phrase from the Hans Wehr dictionary, every Wednesday.

عرف قاصيه ودانيه (qāṣiyahū, dāniyahū) to know s.th. inside out, know every nook and cranny of it (e.g., of a town)
Root: ق-ص-و
Page: 902*
Example: “رَجَعا بَعدَ سِنينِ إلى مَدينَتِهِما الَّتي كانا يَعرِفانِ قاصِيَها ودانِيَها، وَلَمْ يَعودا يَعرِفانِها إطْلاقًا”
Translation: “they returned after some years to their city which they knew inside out, but they no longer recognised it at all”
Notes:
- For more about the unique grammar of the noun سِنون/سِنين in the example sentence, see Non-Human Nouns, Human Plurals!
Revise all of the vocab from the series on Quizlet:
* The Hans Wehr Dictionary of Modern Written Arabic, 4th Edition