Definition of "fortyish"

I’m going to start a support group of us fortyish guys with this problem. LUMPS, we’ll call our group. Losing Unwanted Midriff Plumpitude Sensibly.

1994, Sam Cook, “[Gerbils and other realities of the forties] Too much me”, in If This Is Mid-Life… Where’s the Crisis?, Duluth, Minn.: Pfeifer-Hamilton, page 120

One problem it drops in our laps is to have developed all fortyish of its species within our temperate area, from the Falklands to the central temperate Andes.

1993, Quarterly bulletin of the Alpine Garden Society, volumes 61-62, Alpine Garden Society (Great Britain), page 348

A great many black men are Mark Lawrence's age (fortyish), height (six-two-ish), weight (one-seventy-ish), and complexion (a reddish medium brown) that hints of a childhood of freckles and umber-red hair

2003, Randall Robinson, The Reckoning: What Blacks Owe to Each Other

In my day, more often than not, you had to break rank to join the very few fortyish-aged women (renegades) promoted

2004, Jean Lau Chin, The Psychology of Prejudice and Discrimination, page 46

The day was cloudy, and the temperature was about fortyish.

2006, Harold F. Kratch, One Soldier's Memories, page 109