limped ... implode

implode ----- diploma

diploma ... optimal

Optimal -- lipoma

lipoma ... oilcamp

oilcamp ----- comical

comical ... laconic

(True story: my husband once overheard two co-workers talking about him:
"Do you he's laconic?" "I dunno - he never talks to me." LOL!)

That's a funny story!

laconic ----- conceal

conceal ... conclave

conclave ----- volcanic