How can I delete words from predictive text (NOT user dictionary)?

[kwhopson]

All I keep seeing is advice about how to delete words from the 'dictionary,' but I have words popping up in my predictive text that are NOT in my dictionary (like AfterDawn, every time I type after). I know how to customize my dictionary via Language and Input.

Also, long pressing the predictive texts suggestions gives me NO options. Samsung Galaxy S5 Active running ATT's 4.4.2 (no Root).

Any advice is greatly appreciated! Thanks - kwhopson