Etymology
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Words related to anatomical

anatomy (n.)
Origin and meaning of anatomy

late 14c., "study or knowledge of the structure and function of the human body" (learned by dissection); c. 1400, "anatomical structure," from Old French anatomie and directly from Late Latin anatomia, from late Greek anatomia for classical anatomē "dissection," literally "a cutting up," from ana "up" (see ana-) + temnein "to cut" (from PIE root *tem- "to cut").

"Dissection" (1540s), "mummy" (1580s), and "skeleton" (1590s) were primary senses of this word in Shakespeare's day; the meaning "the science of the structure of organized bodies" predominated from 17c. Of persons, "the body," from 1590s. Often misdivided as an atomy or a natomy (see N).

The scyence of the Nathomy is nedefull and necessarye to the Cyrurgyen [1541]
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-ical 
compound adjectival word-forming element, usually interchangeable with -ic but sometimes with specialized sense (such as historic/historical, politic/political), Middle English, from Late Latin -icalis, from Latin -icus + -alis (see -al (1)). Probably it was needed because the forms in -ic often took on a noun sense (for example physic). Forms in -ical tend to be attested earlier in English than their twins in -ic.
anatomic (adj.)
"anatomical," 1712, from Latin anatomicus, from Greek anatomikos "relating to anatomy," from anatomia (see anatomy). Anatomical is older.
anatomically (adv.)

"in an anatomical manner," 1640s, from anatomical + -ly (2). Anatomically correct, in reference to dolls and meaning "with genitalia," is attested by 1968, perhaps 1967, American English, in reference to Petit Frère, an imported French boy doll.