'non-clogging' is formed from the prefix 'non-' and the verb/noun 'clog'. The prefix 'non-' comes from Latin 'non' meaning 'not', used in English to form negatives; 'clog' comes from Middle English 'clogge' where it meant 'block' or 'heavy piece'.

'clog' appeared in Middle English as 'clogge' (a heavy lump or block) and developed the verbal sense 'to obstruct'; the negative prefix 'non-' was later attached in modern English to create compound adjectives like 'non-clogging'.

Originally 'clog' referred to a block or heavy object; over time it acquired the sense 'to obstruct' and the compound 'non-clogging' now means 'not causing obstruction' or 'resistant to clogging'.