impen

From im- +‎ pen.

impen (third-person singular simple present impens, present participle impenning, simple past and past participle impenned)

1. To shut up or enclose, as in a pen.
   • 1623, Owen Feltham, Resolves: Divine, Moral, Political:

     Like a sheepe impenn'd in the fold.

• “impen”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

impen

1. inflection of impar:
   1. third-person plural present subjunctive
   2. third-person plural imperative

From Proto-West Germanic *impōn.

impen (past singular imp, past participle impt, auxiliary verb hebben)

1. to inoculate
2. to vaccinate

impen

1. Alternative form of ympen