* Thummal (as in a small piece/fragment): This could be translated as "bit," "piece," "fragment," "small piece," or "crumb."
* Thummal (as in a small amount): This could be translated as "pinch," "drop," "speck," or "little bit."
* Thummal (as in a slight movement): This could be translated as "twitch," "flicker," "wiggle," "tremble," or "shimmer."
To give you a more accurate translation, please provide the context in which you encountered the word "thummal."