ουσιαστικό

Etymology: From Ancient Greek οὐσιαστικός (ousiastikos), meaning 'substantial' or 'essential', derived from οὐσία (ousia) meaning 'essence' or 'being'. The word shares the same root as English 'essence' through Latin essentia. In grammatical terminology, it refers to words that name the essence or substance of things - hence 'noun' or 'substantive'. The connection to 'substance' helps remember that nouns are the substantial, concrete elements of language that name people, places, things, and concepts.