About 厕 cè 厕 = 厂 (chǎng "factory, building / roof") + 则 (zé "rule") Would you please tell me why "toilet" is the combination of "building" (or "roof", or "place" as you want) and "rule"?

About 斤 and 筋. My dictionary says that 斤 and 筋 have the same variant form: 觔. If it is true, I'd like to know how much 觔 is used for the meaning 斤 "half a kilo" and how much for 筋 "tendon". Thank you!

About 其 qí Some books say that an alternative pronunciation of 其 qí is jī, and the meaning of 其 jī should be "anniversary". Is that true?

About 星xīng Which is the origins of 星xīng? Why do the "star" must be the union of 日 rì "sun" and 生 shēng "born, life"? I know that in the past the character was written 曐 with three sun, but the question remains... Some authors says that the stars are the quintessence of materials sublimated in the sky (like the aristotelic physic says), but I wonder if old chineses had the same thought. How do the chinese people considers the stars (in ancient point of view)?

About 契 qì - From the Kangxi Zidian I need to understand just the sense of what is written in the Kangxi Zidian about 契 qì. Not the complete translation of the text below, just the general meaning. 1° part 契：《廣韻》苦計切《集韻》《韻會》詰計切《正韻》去計切，????音栔。約也。《易•繫辭》上古結繩而治，後世聖人易之以書契。《禮•曲禮》獻粟者執右契。《註》兩書一契，同而別之。又合也。《周禮•天官》宰夫掌官契以治藏。《前漢•高帝紀》帝與功臣，剖符作誓，丹書鐵契。《唐書•????宗紀》木契銅魚起兵。又神合也。《神仙傳》魏伯陽作參同契二卷。又憂苦也。《詩•小雅》契契寤歎。又灼龜具。《詩•大雅》爰契我龜。《註》契，所以然火而灼之者也。又怯也。《周禮•冬官考工記•輈人》馬不契需。《註》契，怯。需，懦也。又姓。見《姓苑》。又《廣韻》《集韻》《韻會》私列切《正韻》先結切。????同????，高辛氏子，舜五臣之一，商之祖也。《書•舜典》帝曰：契，汝作司徒。別作偰????。又《廣韻》苦結切《集韻》《韻會》《正韻》詰結切。????同挈，勤苦也。《詩•邶風》死生契闊。又疎闊也。2° part 《前漢•范丹傳》行路急卒，非????契闊之所。又刻也。《呂覽》契舟求劒。與鍥通。又絕也，缺也。《司馬相如•封禪文》陛下謙讓而弗發，契三神之歡。《註》三神，上帝，泰山，梁父。 《前漢•毋將隆傳》契國威器。又《集韻》欺訖切，音乞。契丹，國號。宋爲南朝，契丹北朝，後攺號遼。又訖黠切，音拮。戲也。又叶似入切，音習。《禰衡顏子????》知微知章，聞一覺十用舍行藏，與聖合契。从丯从刀从大。俗作契，非。I need to say just one thing: What makes Italki a great community, is the presence of people like all of you. Really thanks for your patience and availability!

About 吃 chī Is true that this 喫 is the traditional way to write 吃? How much it is used this form? Thank you!

About 面 How is used the word 靣 in place of 面? Is 靣 unsual?

About 砝 fǎ Hi! I would like to know the meaning of these sentences, taken from the Kangxi Zidian, about the character 砝 fǎ: 《廣韻》居怯切《集韻》訖業切，????音劫。硬也。又居盍切，音????。石聲。 ???? should be the ancient form of 竝 bìng, I suppose: but I don't know what is: ???? . Thanks to everybody. Bye!I'm interested in understanding the etymology of the character, particularly where the component 去 is coming from.These are the two missing characters: 1°) 大大 一一 2°) 去力 鳥