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Latin luctor
← English louk (cognate)
← English lock (mention)
← Ancient Greek λύγος (cognate)
← Proto-Indo-European *lewg- (root)
← Proto-Indo-European *lewg- (derived)
← Proto-Italic *luktāōr (inherited)
← Latin lūxus (mention)
← Lithuanian lugnas (cognate)
← Old Norse lykna (cognate)

→ English reluctant (mention)
→ English obluctation (mention)
→ English louk (cognate)
→ English luctation (mention)
→ Asturian lluchar (inherited)
→ Asturian llucha (inherited)
→ Catalan lluitar (mention)
→ Catalan lluita (derived)
→ Spanish lucha (inherited)
→ Spanish luchar (mention)
→ French lutter (mention)
→ French lutte (inherited)
→ Middle French luitter (derived)
→ Friulian lote (inherited)
→ Friulian lotâ (mention)
→ Galician loita (inherited)
→ Galician loitar (mention)
→ Ancient Greek λύγος (cognate)
→ Italian lotta (inherited)
→ Italian lottare (mention)
→ Latin luma (cognate)
→ Latin luxus (mention)
→ Latin alluctor (affix)
→ Latin lucta (mention)
→ Latin colluctor (affix)
→ Latin lucuns (cognate)
→ Latin luctans (mention)
→ Latin luctaturus (mention)
→ Latin luctatus (mention)
→ Latin luctandus (mention)
→ Neapolitan luttà (mention)
→ Norman litter (inherited)
→ Occitan luchar (mention)
→ Portuguese luta (inherited)
→ Portuguese lutar (mention)
→ Romansch lutga (inherited)
→ Romansch lotga (inherited)
→ Romansch luotta (inherited)
→ Romanian luptă (inherited)
→ Romanian lupta (mention)
→ Aromanian alumtu (inherited)
→ Aromanian alumtã (inherited)
→ Aromanian ljuftã (derived)
→ Old Irish loing (cognate)