The Collaborative International Dictionary of English v.0.48:
Refrain \Re*frain"\ (r[-e]*fr[=a]n"), v. t. [imp. & p. p.
Refrained (-fr[=a]nd"); p. pr. & vb. n. Refraining.] [OE.
refreinen, OF. refrener, F. refr['e]ner, fr. L. refrenare;
influenced by OF. refraindre to restrain, moderate, fr. LL.
refrangere, for L. refringere to break up, break (see
Refract). L. refrenare is fr. pref. re- back + frenum
bridle; cf. Skr. dh[.r] to hold.]
1. To hold back; to restrain; to keep within prescribed
bounds; to curb; to govern.
His reason refraineth not his foul delight or
Refrain thy foot from their path. --Prov. i. 15.
2. To abstain from. [Obs.]
Who, requiring a remedy for his gout, received no
other counsel than to refrain cold drink. --Sir T.