'constantly-visible' originates from English compounding of 'constantly' and 'visible', where 'constantly' ultimately derives from Latin 'constans' (from 'con-' meaning 'together' and 'stare' meaning 'to stand') and 'visible' derives from Latin 'vidēre' meaning 'to see'.

'constans' changed into Old French and Middle English forms such as 'constant' and later produced the adverb 'constantly'; separately Latin 'vidēre' produced Late Latin 'vidibilis' and Old French 'visible', which passed into Middle English as 'visible'; the modern English compound 'constantly-visible' is formed from these elements.

Initially, 'constantly' conveyed a sense of 'standing firm' and later 'without change/continuously', while 'visible' originally meant 'able to be seen'; over time the combined phrase has come to mean 'always able to be seen'.