Meaning

1 senses
  1. (not comparable, rare)In the zeroth place; before even the first thing.

Origin

From zeroth + -ly, on the model of firstly, secondly, and so on.

From zeroth + -ly, on the model of firstly, secondly, and so on.

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See also

neighbours in the dictionary
zerothly — meaning, examples, forms, synonyms | Krumeto