'noncatalytically' originates from Modern English, specifically formed from the negative prefix 'non-' (from Latin 'non' meaning 'not') combined with 'catalytic' (from Greek 'katalysis'), where 'kata-' meant 'down' and 'lysis' meant 'loosening or dissolution'.

'catalysis' came from Greek 'katalysis', which entered scientific Latin and then English as 'catalysis' and gave rise to the adjective 'catalytic' and the adverb 'catalytically'; the negative prefix 'non-' was later attached in Modern English to produce 'noncatalytically'.

Initially related forms meant 'relating to catalysis' (i.e., involving a catalytic process), but with the addition of the prefix 'non-' the meaning evolved to 'not involving catalysis' or 'without a catalyst'.