Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
de-energise is a verb meaning "deprive of energy". It carries one recorded sense.
deprive of energy
Definitions, synonyms and semantic relations for de-energise come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.