'enclosed-spored' originates from English, specifically a compound of 'enclosed' (past participle of 'enclose') and 'spore', where 'enclose' comes from Latin elements meaning 'in' + 'to shut' and 'spore' comes from Greek 'spora' meaning 'seed' or 'sowing'.

'enclosed-spored' was formed in modern scientific English by compounding the past-participial adjective 'enclosed' (from Middle English/Old French forms derived from Latin 'includere') with the noun 'spore' (from Greek 'spora'), producing a descriptive compound adjective used in taxonomy and morphology.

Initially the components referred separately to 'being shut in' and to a 'seed/propagule'; over time they were combined to describe organisms whose spores are contained within a protective structure, yielding the current specialized biological meaning.