Why was Surat Al-Jathiyah given this name?

The naming of surahs may relate to a story, a recurring phrase, or an unusual word. Surat Al-Jathiyah was named so because the word "jathiyah" appears in it, in Allah's Almighty saying: "And you will see every nation jathiyah (kneeling/huddled)." There are interpretations for "jathiyah," including: startled, gathered, distinct, submissive, or kneeling on their knees.