I don't know if this will help much, but Sanskrit is so closely related to German that it is widely accepted that a person who speaks one can figure out the other with little or no assistance. A true mystery how the two languages evolved so closely on different continents with no verifiable contact.
On a more helpful note, yogajournal.com has a list of asanas that you can click for photos, instructions, et. Each listing also includes the phonetic pronounciation as well as the root words. For example:
Eka Pada Rajakapotasana (One-Legged King Pigeon Pose)
Eka Pada Rajakapotasana is a deep backbend that puffs the chest, making a yogi resemble a pigeon.
The full pose, which is suitable for intermediate students, will be described in the Full Pose section below. First we'll practice the leg position only, which should be accessible to most experienced beginners.
(aa-KAH pah-DAH rah-JAH-cop-poh-TAHS-anna)
eka = one
pada = foot or leg
raja = king
kapota = pigeon or dove
Or, if you are just starting out:
Adho Mukha Svanasana (Downward-Facing Dog)
One of the most widely recognized yoga poses, Downward-Facing Dog is an all-over, rejuvenating stretch.
(AH-doh MOO-kah shvah-NAHS-anna)
adho = downward
mukha = face
svana = dog
They certainly don't list every asana, but once you get a feel for the language you should be fine. Hope this helps.