Polish guru

← Hindi गुरू (borrowed)

← Proto-Indo-Iranian *gr̥Húš (derived)

← Proto-Indo-Aryan *gr̥Húṣ (derived)

← Proto-Indo-European *gʷréh₂us (derived)

← Punjabi ਗੁਰੂ (borrowed)

← Sanskrit गुरु (derived)

← Urdu گرو (borrowed)