'ascogonial' originates from New Latin, specifically the word 'ascogonium' + English adjectival suffix '-al', where the element 'asco-' comes from Greek 'askos' meaning 'sac, pouch' and '-gonium' comes from Greek 'gonos' meaning 'seed, generation' (referring to reproductive structures).

'ascogonial' developed as an English adjective from New Latin 'ascogonium' (a term coined in modern mycological Latin), which itself was formed from Greek components 'askos' and 'gonos'; the adjectival form was produced by adding the English/Latin suffix '-al' to designate relation to the structure or stage.

Initially the root term referred specifically to the structure 'ascogonium'; over time the derived adjective 'ascogonial' came to be used more broadly to describe features, hyphae, or stages related to that structure in mycological descriptions.