The word reapeth appears 3 times in the Douay-Rheims Bible. The first 2 matching verses are shown below.
John 4:36And he that reapeth receiveth wages and gathereth fruit unto life everlasting: that both he that soweth and he that reapeth may rejoice together.
John 4:37For in this is the saying true: That it is one man that soweth, and it is another that reapeth.