-dumbre

From Old Spanish -dumne, from Vulgar Latin *-tūm(i)nem, from Latin -tūdinem (apparently via dissimilation/assimilation). Doublet of -itúdine and -itud.

Found in both words inherited from Latin (certidumbre, dulcedumbre, mansedumbre, muchedumbre, servidumbre, soledumbre) and words formed within Spanish (pesadumbre, podredumbre).

-dumbre f (noun-forming suffix, plural -dumbres)

1. (no longer productive) forms nouns from adjectives: -itude, -ness

   ‎pesar (“to weigh”) + ‎-dumbre → ‎pesadumbre (“sorrow”)

   ‎podrido (“rotten”) + ‎-dumbre → ‎podredumbre (“rottenness”)