fundamental, basic

(history) the House of Peers (upper house of Japan's Imperial Diet) / the House of Lords (upper house of Britain's or Ireland's Parliament)

miraculous

regular; systematic

threatening; menacing

(grammar) a verbal conjugation class in which the verb stem ends in k-, with minor historical changes

(grammar) a verbal conjugation class in which the verb stem ends in s-

(Classical Japanese grammar) a verbal conjugation class in which the verb stem ends in r- with four irregular bases: -a, -i, -u, and -e

(linguistics) a specific historical consonantal shift of the Japanese language during the Heian Period, wherein many word-medial /f/ sounds changed to /w/ sounds

a journey of a thousand miles begins with a single step