'chirally' originates from English, specifically formed from the adjective 'chiral' plus the adverb-forming suffix '-ly' (which creates an adverb meaning 'in a chiral way').

'chiral' was coined in the late 19th century (credited to William Thomson, Lord Kelvin) from the Greek root 'cheir' (χειρ) meaning 'hand'; the scientific adjective 'chiral' entered English usage and later produced derived forms such as 'chirality' and 'chirally'.

Initially related to 'hand' or 'hand-like' (literally 'having the properties of a hand'); over time, especially in chemistry, it evolved to the technical meaning 'not superimposable on its mirror image' (applied to molecules, structures, and processes).