apo- / Indo-European roots
Examples of words with the root apo-: ab-, abaft, ablaut, aft, after, apo-, apposite, awkward, component, contrapposto, depone, dispose, ebb, eftsoons, expound, impose, interpose, of, off, offal, oppose, pogrom, position, positive, post, post-, posterior, postiche, posture, preposition.
▲ Derivatives include off, ebb, awkward, puny, compote.
a. of, off, offal from Old English of, æf, off;
b. ebb from Old English ebba, low tide;
c. ablaut from Old High German aba, off, away from;
d. aft; abaft from Old English æftan, behind, from Germanic *aftan-. a-d all from Germanic *af.
2. ab-1 from Latin ab, ab-, away from.
3. apo- from Greek apo, away from, from.
4. Suffixed (comparative) form *ap(o)-tero-. after from Old English æfter, after, behind, from Germanic *aftar-.
5. Suffixed form *ap-t-is-. eftsoons from Old English eft, again, from Germanic *aftiz.
6. Suffixed form *apu-ko-. awkward from Old Norse öfugr, turned backward, from Germanic *afug-.
7. Possible variant root form *po(s), on, in.
a. pogrom from Russian po, at, by, next to;
b. post-, posterior; postmortem, preposterous, puisne, puny from Latin post, behind, back, afterward;
c. apposite, apposition, apropos, component, compose, composite, composition, compost, compote, compound1, contrapposto, depone, deposit, dispose, exponent, expose, expound, impose, impost1, impost2, interpose, juxtapose, oppose, position, positive, post2, post3, postiche, posture, preposition1, propose, provost, punt3, reposit, suppose, transpose from Latin pōnere, to put, place, from *po-s(i)nere (sinere, to leave, let; of obscure origin).
[Pokorny apo- 53.]