ごとおび
days of the month ending in 5 or 0 (when payments are often due)
・five
・ten
・day
・sun
・japan
・counter for days
いか
fiftieth day after the birth of a child
いかのいわい
celebration held 50 days after the birth of a child
いかのもちい
mochi used for the celebration of a child's fiftieth day
fifty days