This adverb endukéōs ‘continuously, uninterruptedly’ expresses the idea of an uninterrupted sequence. The opposite of this adverb endukéōs ‘continuously, uninterruptedly’ can be seen in the adjective adeukḗs, which can be interpreted as ‘discontinuous, interrupting’. See the anchor comment at O.04.489. In terms of this interpretation, the root duk-/deuk- for this adverb/adjective conveys the sense of ‘continue’.