gradatim

Etymology
Attested in English since 1575–1585: from, from.

Adverb

 * 1)  step by step; gradually and methodically.
 * 2) * 1928, J UNE : W J Cooper, The School Review: The Junior-College Movement in California, vol. 36, № 6, pp409–422
 * This trend of thought and preaching and practice resulted gradatim in the junior certificate, to mark the distinction between university and secondary…

Synonyms

 * , ; see also Thesaurus:sequentially

Etymology
From.

Adverb

 * 1) step by step, gradually