By Bahuvrīhi compound of অগ্নি (ogni) + বর্ধক (bordhok).
অগ্নিবর্ধক • (ognibordhok) (comparative আরও অগ্নিবর্ধক, superlative সবচেয়ে অগ্নিবর্ধক)
- something that promotes the intensity of fire
- something that ignites hunger/temptation to eat
- something that increases digestive power