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Middle Irish gerr
← Avestan π¬°π¬­π¬€π¬΅π¬ˆπ¬΅π¬ (cognate)
← Proto-Celtic *gerros (inherited)
← Proto-Indo-European *Η΅Κ°er- (inherited)
← Sanskrit ΰ€Ήΰ₯ΰ€°ΰ€Έΰ₯ΰ€΅ (cognate)
← Old Irish gerr (inherited)

β†’ Irish gar (cognate)
β†’ Irish gearr (inherited)
β†’ Middle Irish gerraid (affix)