Deashi Barai to Osoto Gari 

has a large arc like osoto guruma but guruma catches high near the base of the buttocks. think harai goshi done backwards.

Ben Keating wow! Never thought about that. It's basically harai goshi done backwards! It'll be easier for me to perform osoto guruma now. Thank you!!

Actually I just share from one CD I have from Japanese sensei, anyway I think it should be Osoto Gari just because combine techniques so Uke already lose balance so you can saw him fall down like that :)