What does blame mean?
The definition of blame
Blame, v. t.
[imp. & p. p. Blamed; p. pr. & vb. n. Blaming.] Etym: [OE. blamen, F. blâr, OF. blasmer, fr. L. blasphemare to blaspheme, LL. also to blame, fr. Gr. to speak ill to slander, to blaspheme, fr. evil speaking, perh, for ; injury (fr. to injure) + a saying, fr. to say. Cf. Blaspheme, and see Fame.]

1 To censure; to express disapprobation of; to find fault with; to reproach. We have none to blame but ourselves. Tillotson.
2 To bring reproach upon; to blemish. [Obs.] She . . . blamed her noble blood. Spenser. To blame, to be blamed, or deserving blame; in fault; as, the conductor was to blame for the accident. You were to blame, I must be plain with you. Shak.

Blame, n.
Etym: [OE. blame, fr. F. blâme, OF. blasme, fr. blâmer, OF. blasmer, to blame. See Blame, v.]

1 An expression of disapprobation fir something deemed to be wrong; imputation of fault; censure. Let me bear the blame forever. Gen. xiiii. 9.
2 That which is deserving of censure or disapprobation; culpability; fault; crime; sin. Holy and without blame before him in love. Eph. i. 4.
3 Hurt; injury. [Obs.] Spenser.

Synonyms
— Censure; reprehension; condemnation; reproach; fault; sin; crime; wrongdoing.