Where does “Abbas” come from?

Abbas is derived from Arabic عَبَّاس, which comes from Arabic عَبَسَ meaning to frown or knit one's brow.

Ancestry of “Abbas”, step by step

Step	Language	Word	Meaning
1	Arabic	عَبَّاس	one who frowns a lot; untamed lion; lion
2	Arabic	عَبَسَ	to scowl; to frown