'aweless' is formed in English from the noun 'awe' + the suffix '-less' (meaning 'without'). 'Awe' originates from Old English 'ege' (from Old Norse 'agi'), where the root meant 'fear' or 'terror', and the suffix '-less' comes from Old English 'lēas' meaning 'free from' or 'without'.

'awe' moved from Old English 'ege' (influenced by Old Norse 'agi') into Middle English as 'awe', and in Modern English the adjective 'aweless' was formed by adding the productive English suffix '-less' to mean 'without awe'.

Initially, the root for 'awe' carried a stronger sense of 'fear' or 'terror'; over time it broadened to include reverential wonder. 'Aweless' therefore developed to mean 'without that sense of reverence or wonder.'