'asparkle' originates from English, specifically formed by the prefix 'a-' (from Old English 'on'/'a-' used as a locative/adjectival prefix) added to the word 'sparkle', where 'a-' conveyed a sense of 'in' or 'on' and 'sparkle' derives from 'spark' meaning 'a small fiery particle'.

'asparkle' developed from early English uses of the prefixed form 'a-sparkle' (seen in older texts) by attaching the Old English-derived prefix 'a-' to Middle English 'sparkle' (from Middle English forms such as 'sparclen'/'sparkelen'), eventually stabilizing as the single word 'asparkle' in later usage.

Initially it carried a fairly literal sense of 'having or covered with sparks' or 'emitting small flashes', but over time it broadened to the more general sense of 'brightly shining' or 'sparkling' (including figurative uses).