"English speakers also tend to weaken or omit final coronal consonants, a process that linguists call t/d deletion: thus [lɛf] for left. Although t/d deletion is stigmatized, in fact all normal English speakers do it some of the time, at least in some contexts. As a result, fixed expressions that start out as participle+noun are sometimes re-analyzed so as to lose their -ed ending. This happened long ago to ice(d) cream, skim(med) milk, pop(ped) corn, wax(ed) paper, shave(d) ice, etc. It’s happened more recently (I think) to ice(d) tea, cream(ed) corn, and whip(ped) cream."
— Language Log » The population memetics of un-ed-ing — Whoa. I had never noticed this phenomenon, but I love it already.
