Where does “telescopist” come from?

telescopist (English) comes from English telescope, from Latin telescopium, from Italian telescopio, from Ancient Greek τηλεσκόπος, from Ancient Greek τῆλε, from Latin commūnicāre, from Latin commūnis, from Old Latin com(m)oinis — resin, gum; to say, speak.

telescopist (English): One who uses a telescope

Definitions

One who uses a telescope

Ancestry of “telescopist”, step by step

telescopist traces back through two separate lines of ancestry.

via English telescope

Step	Language	Word	Meaning
1	English	telescope	A monocular optical instrument that magnifies...
2	Latin	telescopium	a telescope
3	Italian	telescopio	telescope
4	Ancient Greek	τηλεσκόπος	far-seeing
5	Ancient Greek	τῆλε	far off, afar, far away
6	Latin	commūnicāre	—
7	Latin	commūnis	common, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
8	Old Latin	com(m)oinis	—
9	Proto-Italic	kommoinis	common
10	Proto-Indo-European	ḱom-moy-ni-	held in common
11	Proto-Indo-European	ḱóm	beside, near, by, with
12	Proto-Indo-European	ḱe	Deictic particle, here; Post-positional...
13	Middle English	kyt	—
14	German	kitt	putty certain kinds of cement used for fixing e.g. window panes
15	Old High German	kuti	—
16	Proto-West Germanic	kwidu	gum, resin
17	Proto-Germanic	kweduz	resin
18	Proto-Indo-European	gʷet-	resin, gum; to say, speak

via English ist

Step	Language	Word	Meaning
1	English	ist	A practitioner or supporter of an ism
2	English	-ist	Added to words to form nouns denoting
3	Old French	-iste	—
4	Latin	-ista	-ist; one who practises or believes
5	Ancient Greek	-ιστής	Alternative form of -τής; -ist
6	Ancient Greek	-τής	Appended to verbs to form agent nouns
7	Proto-Hellenic	-tās	—

Every word from Proto-Indo-European gʷet- →Every word from Proto-Germanic kweduz →Every word from Proto-West Germanic kwidu →