シ, いた.る, のぶ, のり, みち, よし
climax, arrive, proceed, reach, attain, result in
JLPT1 G6 S6 F996
The relevant oracle bone form of this character depicts 矢# arrow arriving at a target, its *stopping point* → *arrive*; *reach*; *lead to*; *proceed*; *come*; *extend to* → *come to do*; *bring about*; *result in*. In derivative characters such as 疾, 耋, 銍 and 絰, 至 suggests specifically the stopping point of a life.
[Full Kanji Etymology List]