so i either lost/sold modwyr or didn't look my inventor after the old city, i know i talk to it, but now i can't find it in old city ruin or in my inventory, anyway to use cheat console to get it back?

Modwyr must be happy. Forgotten and lost once again.

Ondra stole her.

 

Explains how you forgot how you lost her.

not sure, just know i can't find it in my inventory.

I don't know if this is a spoiler or not.

 

But... 

after you take her to her former owner and complete the quest Modwyr turns into a normal unique, she won't be a soulbound weapon anymore. So check your inventory again.