熟々[tsukuzuku] completely
円熟[enjuku] ripeness
黄熟[koujuku] ripening and turning yellow
噛熟す[kamikonasu] to chew
完熟[kanjuku] completely ripe or mature

使い熟す[tsukaikonasu] to handle (men)
四字熟語[yojijukugo] four-character idiomatic compounds
修熟[shuujuku] developing skill
習熟[shuujuku] skilled
熟す[jukusu] to ripen

に過ぎない[nisuginai] no more than
マルコフ過程[marukofukatei] Markov process
為過ぎる[shisugiru] to overdo
一過[ikka] passing away
一過性[ikkasei] transient (pain or fever)

過ぎ[sugi] past
過ぎる[sugiru] to pass through
過ぎ去った可能性[sugisattakanousei] might-have-been
過去る[sugisaru] to pass
過す[sugosu] to pass (time)