picture (n.)youdaoicibaDictYouDict[picture 词源字典]
early 15c., "drawing, painting," from Latin pictura "painting," from pictus, past participle of pingere "to make pictures, to paint, to embroider," (see paint (v.)). Picture window is from 1938. Picture post-card first recorded 1899. Phrase every picture tells a story first attested 1900, in advertisements for an illustrated life of Christ. To be in (or out of) the picture in the figurative sense dates to 1900.

Expression a picture is worth a thousand words, attested from 1918, probably was from the publication trade (the notion that a picture was worth 1,000 words is in printers' publications by 1911). The phrase also was in use in the form worth a million words, the form used by American newspaper editor Arthur Brisbane (1864-1936) in an editorial much-read c. 1916 titled "What is a Good Newspaper" in the "New York Evening Journal." In part it read, "After news and humor come good pictures. In this day of hurry we learn through the eye, and one picture may be worth a million words." It seems to have emerged into general use via the medium of advertising (which scaled down the number and also gave the expression its spurious origin story as "a Japanese proverb" or some such thing, by 1919). Earlier various acts or deeds (and in one case "the arrow") were said to be worth a thousand words.[picture etymology, picture origin, 英语词源]
scale (v.1)youdaoicibaDictYouDict
"to climb by or as by a ladder," late 14c., from scale (n.) "a ladder," from Latin scala "ladder, flight of stairs," from *scansla, from stem of scandere "to climb" (see scan (v.)). Related: Scaled; scaling.
scale (v.3)youdaoicibaDictYouDict
"weigh in scales," 1690s, from scale (n.2). Earlier "to compare, estimate" (c. 1600). Meaning "measure or regulate by a scale" is from 1798, from scale (n.3); that of "weigh out in proper quantities" is from 1841. Scale down "reduce proportionately" is attested from 1887. Scale factor is from 1948. Related: Scaled; scaling.
scale (v.2)youdaoicibaDictYouDict
"remove the scales of (a fish, etc.)," c. 1400, from scale (n.1). Intransitive sense "to come off in scales" is from 1520s. Related: Scaled; scaling.
softball (n.)youdaoicibaDictYouDict
baseball of larger than usual size, used in a scaled-down version of the game, 1914, from soft + ball (n.1). The game itself so called from 1916, also known as playground baseball. The word earlier was a term in sugar candy making (1894). Softball question, one that is easy to answer, is attested from 1976.
desquamateyoudaoicibaDictYouDict
"(Of a layer of cells, e.g. of the skin) come off in scales or flakes", Early 18th century (in the sense 'remove the scales from'): from Latin desquamat- 'scaled', from the verb desquamare, from de- 'away from' + squama 'a scale'.