Where does “velificandus” come from?

velificandus (Latin) comes from Latin velificor, from Latin -ficō, from Latin -ficus, from Proto-Italic -fakos — -making, -producing.

Definitions

Step	Language	Word	Meaning
1	Latin	velificor	I make sail, spread sail, set sail; I direct my...
2	Latin	-ficō	forms factitive, causative, or other verbs from the roots of nouns and adjectives; -ify
3	Latin	-ficus	Forms adjectives that denote bringing or making
4	Proto-Italic	-fakos	-making, -producing