pebble, gravel
From the root ح ص ي (ḥ ṣ y) and ح ص و (ḥ ṣ w). Compare Classical Syriac ܚܨܳܨܳܐ (ḥəṣāṣā, “pebble”), Hebrew חצץ (ḥāṣāṣ, “gravel”), Ge'ez ኆጻ (ḫoṣa, “gravel”).
Practice speaking and memorizing "حصى" and many other words and sentences in Arabic.