Where does “meritandus” come from?

meritandus (Latin) comes from Latin merito, from Latin -tō, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Definitions

Ancestry of “meritandus”, step by step

Step	Language	Word	Meaning
1	Latin	merito	according to desert, deservedly, justly,...
2	Latin	-tō	Forms here
3	Latin	-tus	Forms the past participle of verbs; Forms...
4	Proto-Italic	-tus	—
5	Proto-Indo-European	-tus	Derives action nouns from verb roots

Every word from Proto-Indo-European -tus →Every word from Latin -tus →Every word from Latin -tō →