lietvārds

Etymology
From, a  as lietu-vārds; after some variation (A. Stērste had lietas vārds in 1879, and also K. Mīlenbahs in 1895), J. Pārstrauts suggested the form  in 1881, which eventually became accepted as standard in the 1940s.

Noun

 * 1)  noun a word used to refer to an entity, concept or idea