'holgura' originates from Old Spanish, specifically the word 'olgura' (related to the verb 'holgar'), where the root conveyed the idea 'to be at ease' or 'to rest'.

'holgura' changed from Old Spanish 'olgura' (from verb forms like 'holgar/olgar') and eventually became the modern Spanish word 'holgura'.

Initially it referred more to 'rest' or 'being at ease', but over time it evolved into senses of 'looseness', 'space/clearance', and 'leeway' that are used today.