'unceasingly-observed' originates from the combination of 'unceasingly' and 'observed'. 'Unceasingly' comes from the prefix 'un-' meaning 'not' and 'ceasing' from Latin 'cessare' meaning 'to stop'. 'Observed' comes from Latin 'observare' meaning 'to watch over'.

'unceasingly-observed' combines the adverb 'unceasingly' and the past participle 'observed' to form a compound adjective.

Initially, 'unceasingly' meant 'without stopping', and 'observed' meant 'watched'. Together, they convey the idea of being continuously watched.