それ以来[soreirai] since then
出来るようになる[dekiruyouninaru] (something) has become possible
やって来る[yattekuru] to come along
ぴんと来る[pintokuru] to get (a joke or explanation)
以来[irai] since

遠来[enrai] foreign or distant visitor
往来[ourai] coming and going
家来[kerai] retainer
外来[gairai] external origin
外来患者[gairaikanja] outpatients

一週[isshuu] one week
一週間[isshuukan] one week
今週[konshuu] this week
今週中に[konshuujuuni] before the week is out
さ来週[saraishuu] week after next

七週の祭[nanamawarinoiwai] the Feast of Weeks
七週の祭り[nanashuunomatsuri] the Feast of Weeks
週刊[shuukan] published weekly
週刊雑誌[shuukanzasshi] weekly magazine