Abarim Publications' online Biblical Hebrew Dictionary
The verb קבץ (qabas) means to gather or assemble (Joshua 10:6, 1 Samuel 8:4, Hosea 1:11). This verb, says HAW Theological Wordbook of the Old Testament "refers primarily to gathering people into one place," and is one of a few verbs that denote this.
Other verbs that mean to gather are ארה ('ara see the name Ari), and קהל (qahal see the name Qoheleth). The difference between these verbs is not very obvious. Perhaps they compare to the English to gather, to group up, to get together, etcetera.
This verb yields two nouns:
- The masculine noun קבוץ (qibbus), meaning assemblage or the rather coarse "heaps" as BDB Theological Dictionary has it. This word is known today as the word Kibbutz. In the Bible it occurs only in Isaiah 57:13.
- The feminine noun קבצה (qebusha), meaning gathering. This noun occurs only in Ezekiel 22:20, and that in plural form.