建けん仁にんけんにんMeanings1nounKennin era (1201.2.13-1204.2.20)Japanese era name (年号) from early Kamakura period. Used in historical contexts.建けん仁にん年ねん間かんに、栄えい西さい禅ぜん師じが臨りん済ざい宗しゅうを伝つたえた。During the Kennin era, Zen master Eisai introduced the Rinzai school.