-ть - Wiktionary, the free dictionary

See also: тъ

Inherited from Proto-Slavic *-ti, through the variant *-tь.

-ть • (-tʹ)

1. The infinitive ending of the majority of Russian verbs (some use -ти (-ti) or -чь (-čʹ)).

• -ать (-atʹ), -ять (-jatʹ), -еть (-etʹ), -ить (-itʹ)
• -ти (-ti), -чь (-čʹ)

Inherited from Proto-Slavic *-ti, through the variant *-tь.

-ть • (-tʹ)

1. Alternative infinitive ending, often used poetically.

• -ти (-ty)