tea-ball (n.)

"round object, compact spherical body," also "a ball used in a game," c. 1200, probably from an unrecorded Old English *beal, *beall (evidenced by the diminutive bealluc "testicle"), or from cognate Old Norse bollr "ball," from Proto-Germanic *balluz (source also of Dutch bal, Flemish bal, Old High German ballo, German Ball), from PIE root *bhel- (2) "to blow, swell."

The meaning "testicle" is from early 14c. (compare ballocks). Ball of the foot is from mid-14c. The meaning "rounded missile used in warfare" is from late 14c.

The meaning "a game played with a ball" is from mid-14c. The baseball sense of "pitch that does not cross the plate within the strike zone" is by 1889, probably short for high ball, low ball, etc.

Ball-point pen is by 1946. Ball of fire when first recorded in 1821 referred to "a glass of brandy;" as "spectacularly successful striver" it is attested from c. 1900. Many phrases are from sports: To have the ball "hold the advantage" is from c. 1400. To be on the ball is from 1912; to keep (one's) eye on the ball in the figurative sense is by 1907, probably ultimately on golf, where it was oft-repeated advice. Figurative use of ball in (someone's) court is by 1956, from tennis.

The head must necessarily be steady, for it is most important that you should keep your eye fixedly on the ball from the moment that the club-head is lifted from the ground until the ball is actually struck. "Keep your eye on the ball," should be your companion text to "Slow back." [Horace G. Hutchinson, "Hints on the Game of Golf," 1886]

Once a meeting is over, someone will be expected to do something. Make sure it is someone else. This is known as keeping the ball in their court. [Shepherd Mead, "How to Get Rich in TV Without Really Trying," 1956]

1650s, tay, "prepared leaves of the tea plant," also "an infusion of prepared tea leaves used as a beverage," also in early spellings thea, tey, tee and at first pronounced so as to rhyme with obey (Pope); pay (Gay). The modern pronunciation predominates from mid-18c.

The word is earliest in English as chaa (1590s), also cha, tcha, chia, cia (compare cha, chai). The two forms reflect two paths of transmission: chaa, etc. are from Portuguese cha, via Macao, from Mandarin (Chinese) ch'a. The later form, which became Modern English tea, is via Dutch thee, from Malay teh and directly from Chinese (Amoy dialect) t'e, which corresponds to Mandarin ch'a.

The modern English form (along with French thé, Spanish te, German Tee, etc.) reflects the role of the Dutch as chief importers of the leaves in that part of Europe (through the Dutch East India Company, from 1610). Meanwhile, Russian chai, Persian cha, Greek tsai, Arabic shay, and Turkish çay all came by overland trade routes from the Mandarin form.

Tea was known in Paris by 1635; the practice of drinking it was introduced in England by 1644. The word was extended by 1660s to the tea plant itself, also to similar infusions of the parts of other plants. The slang meaning "marijuana" (which sometimes was brewed in hot water) is attested by 1935, felt as obsolete by late 1960s.

The meaning "late afternoon meal at which tea is served" is by 1738. Tea-bottle as English slang for "old maid" is attested by 1909. To not do something for all the tea in China "not for anything" is colloquial, attested by 1947 in Australian English, said to date from 1890s.