I did the ex- search in our brand spanking new brick and mortar AHD4 last night (how many couples do you know who would give each other a dictionary as a mutual Valentine's Day present?). I posted this morning without consulting anything but my memory. I'm not sure if there were any hs that got lost in Latin, but it's not uncommon for a vhv (where v is any short vowel) to become a long v in Latin. The h was sometimes silent in Latin. I won't be able to devote any brick and mortar time on this till tomorrow night. I'm not going to do it on line.