The word "噶喇" is formed through phonetic transcription, where the characters "噶" (gá) and "喇" (lǎ) are used solely for their sounds to approximate a foreign term, often from Tibetan or Mongolian. Each character contributes a syllable to replicate the pronunciation, resulting in the disyllabic word "gálǎ", without deriving meaning from the individual characters' semantics.