Irish fómhar

← Proto-Celtic *uɸo-giamur (inherited)

← Proto-Celtic *uɸo- (mention)

← Proto-Celtic *giamur (mention)

← Irish geimhreadh (mention)

← Scottish Gaelic foghar (cognate)

← Manx fouyr (cognate)

← Middle Irish fogamur (inherited)

← Old Irish [[fogamar]], [[fogomur]] (inherited)

→ Manx fouyr (cognate)