narrow (adj.)

Middle English narwe, from Old English nearu "of little width, not wide or broad; constricted, limited; petty; causing difficulty, oppressive; strict, severe," from West Germanic *narwaz "narrowness" (source also of Frisian nar, Old Saxon naru, Middle Dutch nare, Dutch naar) which is not found in other Germanic languages and is of unknown origin.

In reference to railroads, narrow-gauge (also narrow-gage) is by 1841, originally of those less than the standard of 4 feet 8 1/2 inches. The narrow seas (mid-15c.) were the waters between Great Britain and the continent and Ireland, but specifically the Strait of Dover.

narrow (v.)

Middle English narwen, from narrow (adj.) and in part from Old English nearwian "to force in, cramp, confine; become smaller, shrink." Related: Narrowed; narrowing.

narrow (n.)

c. 1200, nearewe "narrow part, place, or thing," from narrow (adj.). Old English nearu (n.) meant "danger, distress, difficulty," also "prison, hiding place."

Others are reading

Definitions of narrow from WordNet
narrow (v.)
make or become more narrow or restricted;
The selection was narrowed
The road narrowed
Synonyms: contract
narrow (v.)
define clearly;
I cannot narrow down the rules for this game
Synonyms: pin down / peg down / nail down / narrow down / specify
narrow (v.)
become more focused on an area of activity or field of study;
Synonyms: specialize / specialise / narrow down
narrow (v.)
become tight or as if tight;
Synonyms: constrict / constringe
narrow (adj.)
not wide;
a narrow bridge
a narrow line across the page
narrow (adj.)
limited in size or scope;
the narrow sense of a word
narrow (adj.)
very limited in degree;
won by a narrow margin
a narrow escape
narrow (adj.)
characterized by painstaking care and detailed examination;
a narrow scrutiny
Synonyms: minute
narrow (n.)
a narrow strait connecting two bodies of water;