Akademik

sub-

prefix (also suc- before c, suf- before f, sug- before g, sup- before p, sur- before r, sus- before c, p, t)
1 at or to or from a lower position (subordinate; submerge; subtract; subsoil).
2 secondary or inferior in rank or position (subclass; subcommittee; sub-lieutenant; subtotal).
3 somewhat, nearly; more or less (subacid; subarctic; subaquatic).
4 (forming verbs) denoting secondary action (subdivide; sublet).
5 denoting support (subvention).
6 Chem. (of a salt) basic (subacetate).
Etymology: from or after L sub- f. sub under, close to, towards

Useful english dictionary. 2012.