OXFORD DICTIONARY
sabbatical, adj. & n.
--adj.
1 of or appropriate to the sabbath.
2 (of leave) granted at intervals to a university teacher for study or travel, orig. every seventh year.
--n. a period of sabbatical leave.
sabbatical year
1 Bibl. every seventh year, prescribed by the Mosaic law to be observed as a 'sabbath', during which the land was allowed to rest.
2 a year's sabbatical leave.
sabbatically adv.
LL sabbaticus f. Gk sabbatikos of the sabbath
THESAURUS
sabbatical
comfortable, festal, furlough, holiday, leave, leave of absence, liberty, paid holiday, paid vacation, quiet, restful,
sabbatical leave,
sabbatical year, shore leave, time off, vacation, vacational, weekend