General Meaning:
* Sabaw - This literally translates to "broth" and can be used for a general decoction.
* Katas - This means "extract" or "juice" and can also be used for a decoction.
Medical Context:
* Pampagaling na sabaw - This literally means "healing broth" and is used specifically for decoctions used for medicinal purposes.
* Katas ng halamang gamot - This means "extract of medicinal plants" and is used for decoctions made from herbs.
Cooking Context:
* Sabaw ng mga halamang gamot - This means "broth of herbs" and is used for decoctions made for cooking purposes.
Other Options:
* Pinakuluang tubig - This literally means "boiled water" and is a simple way to refer to a decoction.
* Sabaw ng gamot - This means "medicinal broth" and is used for decoctions used for treatment.
Ultimately, the best Tagalog translation will depend on the specific context in which "decoction" is being used.