starken

From Middle English starkenen (“to grow strong”), equivalent to stark +‎ -en.

starken (third-person singular simple present starkens, present participle starkening, simple past and past participle starkened)

1. (transitive) To make unbending or inflexible; stiffen; make obstinate.

• Kanters, Kastner, rankest, tankers

starken

1. inflection of stark:
   1. strong genitive masculine and neuter singular
   2. weak and mixed genitive and dative all-gender singular
   3. strong, weak, and mixed accusative masculine singular
   4. strong dative plural
   5. weak and mixed all-case plural