'awakeable' originates from modern English, specifically formed from the verb/adjective 'awake' plus the adjectival suffix '-able' (meaning 'capable of being').

'awake' comes from Old English 'awacan' / 'awæcnan' (to wake up), via Middle English forms such as 'awake'/'awaken'; the suffix '-able' derives from Latin '-abilis' through Old French '-able', and was attached in modern English to form 'awakeable'.

Initially, the elements meant 'to wake' (from 'awake') and 'capable' (from '-able'); combined, they have the straightforward modern meaning 'able to be awakened.'