تسمَّنَ يتسمَّن، تَسَمُّنًا، فهو مُتَسَمِّن

مُطاوع سمَّنَ : سَمِن، كثر لحمُه وشحمُه.

🇬🇧 Translation:

Reflexive of sammana : became fat, his flesh and fat became abundant (To fatten oneself/Become fat).