squire

n. country gentleman, landowner (in England); knight's attendant (in the Middle Ages); rural judge or prominent lawyer (in the USA); man who escorts a lady in public

v. chaperone a woman, escort a woman

In feudal times a squire was a man-at-arms in the service of a knight, often as his apprentice. In later years, the term's meaning shifted.
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Noun
1. young nobleman attendant on a knight
(hypernym) attendant, attender, tender
(hyponym) armiger, armor-bearer
2. an English country landowner
(hypernym) landowner, landholder, property owner
(classification) United Kingdom, UK, Great Britain, GB, Britain, United Kingdom of Great Britain and Northern Ireland
3. a man who attends or escorts a woman
(synonym) gallant
(hypernym) attendant, attender, tender
Verb
1. attend upon as a squire; serve as a squire
(hypernym) escort

n. squire

(v. t.)
To attend as a squire.
  

(v. t.)
To attend as a beau, or gallant, for aid and protection; as, to squire a lady.
  

(n.)
A title of office and courtesy. See under Esquire.
  

(n.)
A title of dignity next in degree below knight, and above gentleman. See Esquire.
  

(n.)
A square; a measure; a rule.
  

(n.)
A shield-bearer or armor-bearer who attended a knight.
  

(n.)
A male attendant on a great personage; also (Colloq.), a devoted attendant or follower of a lady; a beau.