西

Originally a compound of 去に (ini, “going away”, the 連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 去(い)ぬ (inu, “to go away”)) + し (shi, “wind; (by extension) direction”, as seen in other ancient-derived words as 嵐 (arashi, “storm”, literally “wild + wind”), 旋風 (tsumuji, “whirlwind”), 東 (higashi, “east”, from older pi muka si, literally “sun + facing + wind/direction”)).
First cited in the Kojiki of 712, with the phonetic spelling 爾斯 (nisi).

compound

a place name, especially the name of various wards in major cities throughout Japan


米

Second grade kyōiku kanji (romanization)


子

Contracted from 鼠 (nezumi, “mouse, rat”).


山

山 (canonical)
山 (canonical)
yama (romanization)

山に躓かずして垤に躓く

yama ni tsumazukazu shite tetsu ni tsumazuku

From Old Japanese 山 (yama). First attested in the Kojiki of 712 CE.
Reconstructed as deriving in turn from Proto-Japonic *yama (“mountain; forest”).


己

Originally a compound of 土 (tsuchi, “earth”, one of the Chinese five elements) + の (no, possessive particle) + 弟 (oto, “younger brother”).


矢

From Old Japanese. Found in the Kojiki of 712 CE, and in the Man'yōshū completed some time after 759 CE.


竜

ja-noun

竜(りゅう) • (ryū)

(shogi, colloquial) Short for 竜王 (ryūō): dragon king; a promoted 角行 (kakugyō, “bishop”) that has the moves of both kakugyō and 王将 (ōshō)/玉将 (gyokushō)


竜

竜 (canonical)
Ryū (romanization)
Ryuu (romanization)
りゆう (hiragana historical)

(astronomy) Short for りゅう座 (Ryūza): the constellation Draco


音

Short for 字音 (jion): Chinese-derived reading of a kanji


音

*/ʔiəm/ → /əmʉ/ → /omʉ/ → /oɴ/
From Middle Chinese 音 (MC 'im).

Short for 音読み (on'yomi): the Chinese-derived reading of a kanji


首

From Old Japanese, from Proto-Japonic *kunpi.

corona

circumference of the base of the glans penis in human males

首無し

首を刎ねる