Affixation of renung +‎ -an, inherited from Malay renungan.

• (Standard Indonesian) IPA^(key): /rəˈnuŋan/ [rəˈnu.ŋan]
• Rhymes: -uŋan
• Syllabification: re‧nu‧ngan

renungan (plural renungan-renungan)

1. afterthought, reflection
2. contemplation

   Synonym: kontemplasi

3. meditation

   Synonym: meditasi

4. daydreaming
5. muse, musing
6. speculation
7. gaze
8. thinking
9. cogitation
10. reflexion

• “renungan”, in Kamus Besar Bahasa Indonesia [Great Dictionary of the Indonesian Language] (in Indonesian), Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016

From renung +‎ -an.

• IPA^(key): /rəˈnuŋan/ [rəˈnu.ŋan]

renungan (Jawi spelling رنوڠن, plural renungan-renungan or renungan²)

1. contemplation; reflection; thought; the act of pondering.

   Kata-katanya memberikan banyak renungan kepada kami. ― His words gave us much reflection.

2. stare; gaze; the act of looking intently.

   Renungan matanya membuat semua orang terdiam. ― His intense gaze made everyone fall silent.

• fikiran
• pemikiran

• > Indonesian: renungan (inherited)

• "renungan" in Pusat Rujukan Persuratan Melayu (PRPM) [Malay Literary Reference Centre (PRPM)] (in Malay), Kuala Lumpur: Dewan Bahasa dan Pustaka, 2017