noun, plural en·chi·rid·i·ons, en·chi·rid·i·a [en-kahy-rid-ee-uh, -ki-] /ˌɛn kaɪˈrɪd i ə, -kɪ-/.
- a handbook; manual.
noun plural -ions or -ia (-ɪə)
- rare a handbook or manual
1540s, “a handbook,” from Late Latin, from Greek enkheiridion, neuter of enkheiridios “that which is held in the hand,” from en “in” (see en- (2)) + kheir “hand” (see chiro-) + diminutive suffix -idion.