Definitions from Wiktionary ( )

▸ verb:  (transitive, archaic) To hold back, to restrain (someone or something).
▸ verb:  (reflexive, archaic) To show restraint; to hold oneself back.
▸ verb:  (transitive, now rare) To repress (a desire, emotion etc.); to check or curb.
▸ verb:  (intransitive, with preposition "from") To stop oneself from some action or interference; to abstain.
▸ verb:  (transitive, rare, regional) To abstain from (food or drink).
▸ noun:  The chorus or burden of a song repeated at the end of each verse or stanza.
▸ noun:  (by extension) A much repeated comment, complaint, or saying.

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