systematical

sys=tem=at=i=cal

CIDE DICTIONARY

systematical, a.

Of or pertaining to system; consisting in system; methodical; formed with regular connection and adaptation or subordination of parts to each other, and to the design of the whole; as, a systematic arrangement of plants or animals; a systematic course of study. [1913 Webster]
"Now we deal much in essays, and unreasonably despise systematical learning; whereas our fathers had a just value for regularity and systems." [1913 Webster]

"A representation of phenomena, in order to answer the purposes of science, must be systematic." [1913 Webster]
Proceeding according to system, or regular method; as, a systematic writer; systematic benevolence. [1913 Webster]
Pertaining to the system of the world; cosmical. [1913 Webster]
"These ends may be called cosmical, or systematical." [1913 Webster]
Affecting successively the different parts of the system or set of nervous fibres; as, systematic degeneration. [1913 Webster]

Systematic theology. See under Theology.