The Spanish word 'loba', meaning 'long robe', traces its origins back to the Ancient Greek word 'λώπη' (lope), which referred to a kind of fur cloak. Over time, as the word made its way through various languages and eventually into Spanish, the meaning remained within the realm of clothing but evolved to specifically denote a long robe rather than a fur cloak.

While 'loba' also means 'female wolf' in Spanish, this meaning comes from a different etymological root (Latin 'lupa'). The clothing-related 'loba' doesn't have many common Spanish relatives that would be familiar to beginning students.

While there aren't many common English words directly related to this Greek-derived 'loba', it's worth noting that English does have some technical terms related to clothing that come from similar Greek roots, though these would be quite specialized and not particularly helpful for Spanish learners.