سوس doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 3 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• سَاسَ Form 1

  1 سَاسَ الدَّوَابَّ ذ , aor. يَسُوسُ, (A, Mgh,) inf. n. سِيَاسَةٌ, (TA,) He managed, or tended, the beasts, (قَامَ عَلَيْهَا,) and trained them. (Mgh, TA.) [And سَاسَ المَالَ He managed, or tended, the camels or other pr…

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• سُوسٌ

  سُوسٌ ذ [The grub, or larva of the phalæna tinea and of the curculio; i. e. the moth-worm and the weevil;] the kind of worm that attacks wool (S, A, K) and cloths (TA) and wheat or other food: (S, TA:) and with ة, [a n. …

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• سَوَسٌ

  سَوَسٌ ذ A certain disease in the rump of a horse or similar beast, (M, K, TA,) between the hip and the thigh, occasioning, as its result, weakness of the kind leg: (TA:) or a disease that attacks the beast in its legs. …

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