'elisional' originates from Latin, specifically the word 'elidere', where the prefix 'e-' meant 'out' and the root related to 'laedere' meant 'to strike (away)'.

'elisional' came via Late Latin/Medieval Latin 'elisionem' and Old French 'élision' into Middle English 'elision', and the adjective was formed in English with the suffix '-al' to produce 'elisional'.

Initially associated with the idea of 'striking out' or removing, it evolved to mean the omission of sounds, syllables, or words in speech and writing.