* LongPD (acedia нет). В Random ссылка на acedia; в НБАРС нет (только acedia), в EncartaWED нет (только acedia в тезаурусе).
OED: accidie. [a. OFr. ac_cide, a_cide,
ONormFr. ac_cidie, a_cidie; ad. med.L. acc_dia, corrupt. of late L. acedia, a.
Gr. ______ heedlessness, torpor (in Cicero, Att. xii. 45) n. of state f. _ not
+ ______ care, ________ I care, lit. non-caring-state. Acedia became a favourite ecclesiastical word, applied primarily to
the mental prostration of recluses, induced by fasting, and other physical
causes; afterwards the proper term for the 4th cardinal sin, sloth,
sluggishness. (See Chaucer, Persones T. 603.) Its Greek origin being forgotten,
the word was variously _derived' from acidum sour (see Cжsarius quoted in
Du Cange, and Roquefort _Acide: Ennui, tristesse, dйgoыt:
d'acidum'); and from accidere to come upon one as an accident or access, whence
the med.L. corruption, accidia, and OFr. and Eng. ac_cide, ac_cidie. The latter
is Norman, the former Parisian; the later Eng. accentuation was _accidie. With
the restoration of Gr. learning, the L. became again acedia, whence a rare
acedy in 17th c.] Sloth, torpor.
¿ 10.02.01 V