2 letters:
mc

3 letters:
bic, dic, dyk, mic, nic, nik, pic, pik, ric, sic, tic, vic, vik, wik, wyk

4 letters:
bick, bric, bryk, cwik, dick, dzik, fick, gick, hick, kick, kwik, lick, nick, pick, quik, rick, sick, tick, wick, zick

5 letters:
biche, blick, brick, chick, chike, clicc, click, crick, decke, dicke, ficke, flicc, flick, frick, glick, klick, knick, krick, lasik, logik, micke, picke, prick, quick, ricke, rikke, sapic, shick, shtik, slick, smick, spick, stick, swick, thick, trick, wicce, wicke, wikke, wrick, zwick

6 letters:
afflik, amylic, bewick, blicke, brique, chique, fnatic, fricke, glicke, judaic, lacnic, magick, niceic, picnic, picnik, schick, schtik, sextic, shtick, sprick, squick, strick, tchick, thicke, ubique, uptick, vanwyk, vladic, yup'ik, zoetic

7 letters:
1-click, aaronic, agnatic, alnwick, barwick, be sick, cubique, dacitic, deontic, druidic, dynamik, elswick, ergotic, estwick, eupneic, evernic, extatic, fenwick, gatwick, herwick, ixquick, jaywick, keswick, krutick, kubrick, lavatic, linwick, lipnick, lunatic, marwick, nephric, nepotic, paganic, palatic, pandick, piratic, politic, politik, relique, roddick, schlick, schmick, schnick, schrick, schtick, seasick, shiitic, traczyk, tschick, unquick, unstick, vandyck, vanwyck, venatic, zygotic

8 letters:
akademik, amnestic, anephric, anestric, apositic, argentic, bauxitic, bestwick, bigstick, biotitic, bisquick, bootlick, capstick, carnatic, catstick, cognatic, cow-kick, dermatic, dipstick, divekick, eastlick, eastwick, explique, flitwick, gerontic, gobstick, gunstick, hambrick, handpick, hardwick, hartwick, hembrick, herpetic, homeotic, homesick, ice pick, inkstick, joystick, kyphotic, lampwick, leukotic, linoleic, lipstick, lobstick, micronic, mobikwik, mopstick, morowick, mudbrick, myositic, nadgwick, nonstick, nowaczyk, old nick, orchitic, otolitic, otologic, p-celtic, parietic, peacenik, pelswick, pickwick, pigstick, pitstick, planetic, planktic, politick, pompatic, practick, prelatic, q-celtic, randwick, redbrick, saccadic, sandwick, shamanic, sidekick, sinaitic, songkick, stenotic, sulfitic, sultanic, sylvatic, traywick, triassic, tungstic, villatic, wallhick, zeolitic

9 letters:
ammonitic, andesitic, aplanatic, bailiwick, balliwick, bearbrick, bolshevik, chapstick, chloritic, chopstick, coupstick, crabstick, cue stick, deer-lick, deer tick, didelphyc, dip-stick, dracontic, drop-kick, ellachick, endocytic, firebrick, firestick, flagstick, forestick, free-kick, free kick, frog kick, gamestick, gearstick, glowstick, goal-kick, goldbrick, hard tick, heterotic, impolitic, isopycnic, kidsclick, klickovic, knobstick, mahlstick, maulstick, menshevik, mud-brick, non-stick, nostratic, oil slick, palestric, papernick, pharisaic, pisolitic, placekick, porphyric, presbytic, prestwick, psoriatic, rainstick, red-brick, rhyolitic, salt lick, selenitic, shandwick, sheeptick, slapstick, slipstick, smithwick, soft tick, stratotic, toothpick, trapstick, unpolitic, waterpick, whipstick, wood tick, yardstick

10 letters:
adiactinic, anorthitic, arithmetic, belemnitic, billystick, bloodstick, breadstick, broomstick, candlewick, card trick, coenocytic, cottonwick, fancy-sick, fingerpick, fish stick, granulitic, greenstick, high-stick, horse tick, house dick, israelitic, joss stick, left-click, leukocytic, link click, mahl-stick, matchstick, mathematik, maul-stick, mesokurtic, metrestick, microlitic, miliolitic, myelocytic, nightstick, osteocytic, ostpolitik, phagocytic, place-kick, place kick, poecilitic, pogo stick, poikilitic, polo stick, pool stick, self-stick, sheep tick, side-stick, size stick, superbuick, swordstick, valerianic

11 letters:
adobe brick, anthracitic, archangelic, bread-stick, candlestick, corner kick, doubleclick, ed westwick, fiddlestick, graptolitic, hansi flick, histiocytic, imagemagick, lymphocytic, magic trick, martensitic, metanephric, monogastric, mouse click, needlestick, platykurtic, proctologic, realpolitik, right-click, salpingitic, singlestick, sleepy dick, sporophytic, staurolitic, sword stick, theodolitic, throw stick, weltpolitik

12 letters:
555 timer ic, acroteleutic, body politic, carrot stick, celery stick, dolphin kick, double-click, double-quick, double quick, edward zwick, erythrocytic, flutter kick, granulocytic, hallelujatic, hockey stick, machtpolitik, poking-stick, rhinocerotic, sansculottic, soh wooi yik, superpolitic, the big sick, walkingstick

13 letters:
agranulocytic, conglomeratic, constablewick, control stick, flamenpolitik, kiss-me-quick, microclimatic, pay-per-click, sans-culottic, scissors kick, slippery dick, stromatolitic, swagger stick, swimming kick, walking-stick, walking stick

14 letters:
antiphagocytic, clickety-click, get-rich-quick, graphicsmagick, jamie bestwick, licorice stick, philip k. dick, proto-sinaitic, rhaeto-romanic, shooting stick, throwing stick

15 letters:
acetylsalicylic, conjuring trick, exoerythrocytic, jessica henwick, measuring stick, point-and-click, roadside picnic

16 letters:
carrot-and-stick, colin kaepernick

17 letters:
american dog tick

21 letters:
devil's walking stick