also: てんわ
noun
Tenna era; Tenwa era
Japanese era name spanning 1681–1684, during the early Edo period. Both readings てんな and てんわ exist; てんな is more standard.
天和の大火は1682年に江戸で起きた。
The Great Fire of Tenna occurred in Edo in 1682.
この茶碗は天和年間に作られたものだ。
This tea bowl was made during the Tenna era.
The era name 天和 (Tenna/Tenwa) was adopted in 1681. The exact derivation is uncertain; it is a conventional era name composed of kanji meaning 'heaven' and 'harmony'.