Definition of sub-elementary in English:
sub-elementary
adjective ˌsʌbɛlɪˈmɛnt(ə)ri
Of an order or scale lower than elementary; at a lower level than elementary. In early use: †worldly, mundane (obsolete).
Origin
Early 17th century; earliest use found in Richard Niccols (d. 1616), poet and literary editor. From sub- + elementary.
Definition of sub-elementary in US English:
sub-elementary
adjectiveˌsʌbɛlɪˈmɛnt(ə)ri
Of an order or scale lower than elementary; at a lower level than elementary. In early use: †worldly, mundane (obsolete).
Origin
Early 17th century; earliest use found in Richard Niccols (d. 1616), poet and literary editor. From sub- + elementary.