2 2 ▁and ▁continu ing ▁until ▁his ▁death ▁in ▁ 1 8 3 7 , ▁twenty - vol umes ▁of ▁Le ▁D iction naire ▁techn ologique ▁( The ▁Techn olog ic ▁Dictionary ). ▁During ▁that ▁time , ▁he ▁also ▁published ▁manual s ▁on ▁such ▁diverse ▁topics ▁as ▁food st uff ▁and ▁book binding . ▁ ▁In ▁ 1 8 3 0 , ▁Len orm and ▁returned ▁to ▁Cas tres ▁and , ▁following ▁his ▁est r ang ement ▁from ▁his ▁wife ▁and ▁her ▁family , ▁ren ounced ▁his ▁marriage ▁and ▁res umed ▁his ▁religious ▁life ▁as ▁" Bro ther ▁Ch rys ost om ". ▁He ▁died ▁there ▁on ▁April ▁ 4 , ▁ 1 8 3 7 ▁at ▁age ▁ 7 9 . ▁In ▁his ▁death ▁certificate , ▁his ▁profession ▁was ▁given ▁as ▁" prof essor ▁of ▁the ology " ▁as ▁the ▁term ▁technology ▁was ▁still ▁too ▁new ▁at ▁the ▁time . ▁ ▁Notes ▁ ▁The ▁date ▁diff ers ▁by ▁source . ▁December ▁ 2 6 , ▁ 1 7 8 3 ▁is ▁the ▁most ▁widely ▁reported ▁date . ▁ ▁References ▁ ▁Louis ▁Gu il bert : ▁La ▁formation ▁du ▁voc ab ulaire ▁de ▁l ' av iation ▁Lar ous se ▁( 1 9 6 5 ). ▁Google ▁books ▁Jo ost ▁M ert ens : ▁" Te chn ology ▁as ▁the ▁science ▁of ▁the ▁industrial ▁arts : ▁Louis - S éb ast ien ▁Len orm and ▁( 1 7 5 7 - 1 8 3 7 ) ▁and ▁the ▁popular ization ▁of ▁technology ",