Where does “contiguous United States” come from?

contiguous United States (English) comes from English contiguous, from Latin contiguus, from Latin contingō, from Latin cōn-, from Latin cum, from Old Latin com, from Proto-Italic kom, from Proto-Indo-European ḱóm — to bend; curve; arch; vault; to bow, bend, arch,...

contiguous United States (English): The contiguous continental states area of the United States of America, comprising 48 states in number, and the District of Columbia, excluding Alaska and Hawaii

Definitions

The contiguous continental states area of the United States of America, comprising 48 states in number, and the District of Columbia, excluding Alaska and Hawaii

Ancestry of “contiguous United States”, step by step

contiguous United States traces back through two separate lines of ancestry.

via English contiguous

Step	Language	Word	Meaning
1	English	contiguous	Connected; touching; abutting; Adjacent;...
2	Latin	contiguus	bordering on, neighboring, contiguous
3	Latin	contingō	to touch on all sides, take hold of, come into contact with
4	Latin	cōn-	Used in compounds to indicate a being or bringing together of several objects
5	Latin	cum	with, along with; at; -fold
6	Old Latin	com	Alternative form of cum
7	Proto-Italic	kom	with, along, at
8	Proto-Indo-European	ḱóm	beside, near, by, with
9	Proto-Indo-European	ḱe	Deictic particle, here; Post-positional...
10	Middle English	kyt	—
11	German	kitt	putty certain kinds of cement used for fixing e.g. window panes
12	Old High German	kuti	—
13	Proto-West Germanic	kwidu	gum, resin
14	Proto-Germanic	kweduz	resin
15	Proto-Indo-European	gʷet-	resin, gum; to say, speak
16	Proto-Indo-European	gū-	to bend; curve; arch; vault; to bow, bend, arch,...

via English United States

Step	Language	Word	Meaning
1	English	United States	The collection of individual states of the United States of America

Every word from Proto-Indo-European gū- →Every word from Latin cōn- →Every word from Proto-Indo-European gʷet- →