Worry, n.; pl. Worries (.
A state of undue solicitude; a state of disturbance from care and anxiety; vexation; anxiety; fret; as, to be in a worry. "The whir and worry of spindle and of loom." Sir T. Browne.
2 other Webster entries under this spelling
Worry, v. t. [imp. & p. p. Worried; p. pr. & vb. n. Worrying.]
1. To harass by pursuit and barking; to attack repeatedly; also, to tear or mangle with the teeth. A hellhound that doth hunt us all to death; That dog that had his teeth before his eyes, To worry lambs and lap their gentle blood. Shak.
2. To harass or beset with importunity, or with care an anxiety; to vex; to annoy; to torment; to tease; to fret; to trouble; to plague. "A church worried with reformation." South. Let them rail, And worry one another at their pleasure. Rowe. Worry him out till he gives consent. Swift.
3. To harass with labor; to fatigue. [Colloq.]
Worry, v. i.
To feel or express undue care and anxiety; to manifest disquietude or pain; to be fretful; to chafe; as, the child worries; the horse worries.
Shades of meaning
Fernald has no entry of its own for worry; he lists it under anxiety, care.
Where he writes about it:
Worry is a more petty, restless, and manifest anxiety; anxiety may be quiet and silent; worry is communicated to all around. — from anxiety