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Irish fraoch
← Proto-Celtic *wroikos (inherited)
← Czech vřes (cognate)
← Welsh grug (cognate)
← Irish fraoich (link)
← Irish cearc fhraoigh (link)
← Irish coileach fraoigh (link)
← Irish dallóg fhraoigh (link)
← Irish dúchoileach fraoigh (link)
← Irish fraoch bán (link)
← Irish fraoch camógach (link)
← Irish fraoch cloigíneach (link)
← Irish fraoch fireann (link)
← Irish fraoch Lochlannach (link)
← Irish fraoch coitianta (link)
← Irish fraoch mór (link)
← Irish fraoch naoscaí (link)
← Irish fraochán (link)
← Irish fraochán (link)
← Irish fraochdhaite (link)
← Irish fraochlach (link)
← Irish fraochmhá (link)
← Irish fraochmhar (link)
← Irish leann fraoigh (link)
← Irish luch fhraoigh (link)
← Irish madar fraoigh (link)
← Irish píobaire fraoigh (link)
← Irish fraochnimh (link)
← Irish fraochta (link)
← Irish fraochaíl (link)
← Irish fraochtacht (link)
← Ancient Greek ἐρείκη (cognate)
← Latvian virsis (cognate)
← Middle Irish fráech (inherited)
← Middle Irish fráech (inherited)
← Old Irish [[froích]], [[fróech]] (inherited)
← Middle Breton groegan (cognate)

→ Spanish brezo (cognate)
→ French bruyère (cognate)
→ Irish fraochán (affix)
→ Galician breixo (cognate)
→ Polish wrzos (cognate)