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supplementarily

adverb
sup·​ple·​men·​tar·​i·​ly | \ ¦səplə(ˌ)men‧¦terəlē, -mən‧-, -rəli; -¦men‧trəl-, -ntərəl-\

Definition of supplementarily

: as a supplement : in addition

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History and Etymology for supplementarily

supplementary entry 1 + -ly

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