ولث doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 2 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• وَلَثَتْنَا Form 1

  1 وَلَثَتْنَا السَّمَاءُ ذ , [aor. تَلِثُ,] inf. n. وَلْثٌ, The sky wetted us with a little rain. (TA.) -b2- وَلَثَهُ, aor. يَلِثُ, (S,) inf. n. وَلْثٌ, (S, K,) He beat, struck, or smote, him, (AA, S, K,) with a staff, o…

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• وَلْثٌ

  وَلْثٌ ذ A little of rain: (S, K:) ex. أَصَابَنَا وَلْثٌ مِنْ مَطَرٍ A little rain fell upon us. (S.) -b2- وَلْثُ السَّحَابِ A little rain. (TA.) -b3- وَلْثٌ A covenant, compact, or contract, between a people, that happe…

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