[それっきり, sorekkiri] (n, adv) (1) (uk) (stronger version of それきり) (See それ切り) no more than that; with that; on that note; altogether; (2) since then; ending there
[けいぞくはちからなり, keizokuhachikaranari] (exp) persevering through something difficult makes one stronger; whatever doesn't kill us only makes us stronger; slow but steady wins the race
[つのる, tsunoru] (v5r, vt) (1) to invite contributions, etc.; to solicit help, participation, etc.; to recruit (e.g. soldiers); (v5r, vi) (2) to grow violent; to become stronger; to become worse; (P)
[ちからをつける, chikarawotsukeru] (exp, v1) (1) to build up one's strength; to get stronger; (2) to give (someone) strength; to cheer (someone) up; to encourage (someone)