From The Collaborative International Dictionary of English v.0.48:
Attain \At*tain"\ ([a^]t*t[=a]n"), v. t. [imp. & p. p. Attained (-t[=a]nd"); p. pr. & vb. n. Attaining.] [Of. atteinen, atteignen, atainen, OF. ateindre, ataindre, F. atteindre, fr. L. attingere; ad + tangere to touch, reach. See Tangent, and cf. Attinge, Attaint.] 1. To achieve or accomplish, that is, to reach by efforts; to gain; to compass; as, to attain rest. [1913 Webster]
Is he wise who hopes to attain the end without the means? --Abp. Tillotson. [1913 Webster]
2. To gain or obtain possession of; to acquire. [Obs. with a material object.] --Chaucer. [1913 Webster]
3. To get at the knowledge of; to ascertain. [Obs.] [1913 Webster]
Not well attaining his meaning. --Fuller. [1913 Webster]
4. To reach or come to, by progression or motion; to arrive at. "Canaan he now attains." --Milton. [1913 Webster]
5. To overtake. [Obs.] --Bacon. [1913 Webster]
6. To reach in excellence or degree; to equal. [1913 Webster]
Syn: To Attain, Obtain, Procure.
Usage: Attain always implies an effort toward an object. Hence it is not synonymous with obtain and procure, which do not necessarily imply such effort or motion. We procure or obtain a thing by purchase or loan, and we obtain by inheritance, but we do not attain it by such means. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Attain \At*tain"\, n. Attainment. [Obs.] [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Attain \At*tain"\, v. i. 1. To come or arrive, by motion, growth, bodily exertion, or efforts toward a place, object, state, etc.; to reach. [1913 Webster]
If by any means they might attain to Phenice. --Acts xxvii. 12. [1913 Webster]
Nor nearer might the dogs attain. --Sir W. Scott. [1913 Webster]
To see your trees attain to the dignity of timber. --Cowper. [1913 Webster]
Few boroughs had as yet attained to power such as this. --J. R. Green. [1913 Webster]
2. To come or arrive, by an effort of mind. [1913 Webster]
Such knowledge is too wonderful for me; it is high, I can not attain unto it. --Ps. cxxxix. 6. [1913 Webster]