Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

early 15c., "to copulate" (of wolves, dogs), literally "to range (things) in a line," from Middle French aligner, from Old French alignier "set, lay in line," from à "to" (see ad-) + lignier "to line," from Latin lineare, from linea (see line (n.)). Transitive or reflective sense of "to fall into line" is from 1853. International political sense is attested from 1934. No justification for the French spelling, and aline was an early native form. Related: Aligned; aligning.

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.