Family and friends said goodbye Wednesday to the Eastchester grandmother who was found dead after she went missing for several days.

Catherine Cotter, 88, was mourned in a funeral Mass at Our Lady of Fatima Church in Yonkers. Cotter, who suffered from dementia, wandered away the morning of May 28 from her Garth Road apartment where she lived with her son, John.

The subsequent search for Cotter involved police bloodhounds, ATVs, helicopters and marine units, but heavy rains and a swollen Bronx River may have concealed the body.

Her body was found Friday in the river, less than a mile from her home.

Police said they carefully patrolled the area, but that her body was not visible until the floodwaters receded.

Police initially believed Cotter may have boarded a Metro-North train. Shopkeepers in Cotter's neighborhood, where she often strolled, had also not seen her, leaving police with minimal leads. The family put up fliers in the neighborhood in hopes of finding her.

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She was found fully clothed and no foul play is suspected, police said.

The daughter of Irish immigrants, Cotter had three sons, a daughter and nine grandchildren, according to her online obituary at McGrath Funeral Home of Bronxville.

With Sarah Armaghan