英语词源字典 - 在线词源网站

engross (v.)[engross 词源字典]: c. 1400, "to buy up the whole stock of" (in Anglo-French from c. 1300), from Old French en gros "in bulk, in a large quantity, at wholesale," as opposed to en detail. See gross.

Figurative sense of "absorb the whole attention" is first attested 1709. A parallel engross, meaning "to write (something) in large letters," is from Anglo-French engrosser, from Old French en gros "in large (letters)." Related: Engrossed; engrossing.[engross etymology, engross origin, 英语词源]
rapt (adj.): late 14c., "carried away in an ecstatic trance," from Latin raptus, past participle of rapere "seize, carry off" (see rape (v.)). A figurative sense, the notion is of "carried up into Heaven (bodily or in a dream)," as in a saint's vision. Latin literal sense of "carried away" was in English from 1550s. In 15c.-17c. the word also sometimes could mean "raped." Sense of "engrossed" first recorded c. 1500. As a past participle adjective, in English it spawned the back-formed verb rap "to affect with rapture," which was common c. 1600-1750.
self-centered (adj.): 1670s, "fixed, stationary," from self- + center (v.). In reference to persons, "engrossed in the self, with little regard for others," it is recorded from 1783.
sexy (adj.): 1905, from sex (n.) + -y (2). Originally "engrossed in sex;" sense of "sexually attractive" is 1923, first in reference to Valentino. An earlier word in this sense was sexful (1898). Related: Sexier; sexiest.