Where does “tuupur” come from?

tuupur (Estonian) comes from Estonian -r, from Old Norse -ari, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

tuupur (Estonian): a person who studies excessively; nerd

Definitions

a person who studies excessively; nerd

Ancestry of “tuupur”, step by step

Step	Language	Word	Meaning
1	Estonian	-r	Forms various agent nouns
2	Old Norse	-ari	a suffix used to create agent nouns from verbs;...
3	Latin	-ārius	er
4	Proto-Italic	*-āzios	Forms relational adjectives to nouns (and rarely numerals)

Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Old Norse -ari →