Compound Verbs are formed as follows.

1. By adding,

(a) Noun to Noun. 

(b) Noun to Verb. 

(a) Sidetrack.

(b) Earmark, shipwreck, waylay. …

2. By adding Adjective to Verb.

Fulfill, safeguard, whitewash. …

3. By adding Adverb to Verb.

Ill-use, overtake, understand, uplift, withhold. …