pin·gue noun alsopin·guay\ˈpēŋ(ˌ)gwā, ˈpiŋ-\ (-s) Etymology: Spanish pingüe fat, from Latin pinguis; akin to Greek pimelē lard — more at fat : a perennial glandular herb (Actinea richardsoni) of the family Compositae of the southwestern United States yielding an inferior rubber and causing poisoning of livestock