Biscuit
adhibit, akvavit, aquavit, babysit, backbit, backlit, barefit, benefit, bevomit, biscuit, bushtit, catsuit, cesspit, circuit, coadmit, coalpit, cockpit, cohabit, conceit, conduit, crampit, culprit, deficit, delimit, demerit, deorbit, deposit, exhibit, exploit, exposit, fleapit, floruit, forfeit, gigabit, glaikit, howbeit, illicit, incipit, inhabit, inherit, inhibit, introit, kilobit, lawsuit, manumit, megabit, mesquit, mezquit, misedit, missuit, miswrit, moonlit, nonsuit, outwait, outwrit, overfit, overlit, parfait, plaudit, preedit, pursuit, rarebit, readmit, recruit, redbait, reposit, resplit, revisit, ringgit, sandpit, semifit, shilpit, skelpit, sleekit, solicit, spotlit, starlit, stickit, subedit, subunit, sunsuit, surfeit, thermit, transit, tzitzit, unplait, unsplit, wetsuit
88 words
cherrub
Arriero
turnkey
malaria
How about "density"?
StaminaMilitiaBegoniaFreesiaPetuniaVerbenaOsceolaYeshivaMineolaLasagnaRicottaRosaceaRoseolaMinolta
Quarrel is the word.
therein
digraph
Bubbled.
Herself.
protein
forward
cardiac
forward
quetzal
cherrub