itsu, when.

i-tsugari (tsugaru).

itsuka, at any time.

i-tsuki (imi-tsuki), sacred elms, [131].

itsuki (u), keep, guard with care or reverence, [45], [55], [252], cherish; itsuki-kashidzuki, attend upon and cherish, T.

itsukushiki (utsukushiki), [68].

i-tsukusu (tsukusu).

itsumo, whenever, any time, always, [50].

i-tsumoru (tsumoru).

itsushika, some time or other, [66], [128], [196]; an uncertain ‘when.’