Prefixes in Hebrew – Moses and Caleb

Hebrew uses a set of seven common prefixes – short letters added to the beginning of words to express grammatical relationships. These prefixes are so central to Hebrew that learners often remember them using the mnemonic phrase:
משה וכלב” – Moshe and Caleb

Each letter in this phrase represents one of the seven most frequent Hebrew prefixes:

The Seven Hebrew Prefixes

Letter  Function  Meaning  Example
מ־ Preposition from  מבית (mi-bayit) – from a house
ש־ Relative pronoun that / which  שאמרת (she-amarta) – that you said
ה־ Definite article the  הספר (ha-sefer) – the book
ו־ Conjunction and  ומוזיקה (u-muzikah) – and music
כ־ Comparison like / as  כמלך (ke-melech) – like a king
ל־ Preposition to / for  לבית (la-bayit) – to the house
ב־ Preposition in / with / at  בבית (ba-bayit) – in the house

Why It Matters

These prefixes:

  • Attach directly to nouns, verbs, and adjectives
  • Often merge with the definite article ה־ (e.g., לבית = ל־ + הבית)
  • Can change pronunciation depending on the first letter of the word
  • Are essential for reading Hebrew fluently and understanding sentence structure