virittää

to tune modify a musical instrument so that it produces the correct pitches
to tune adjust a mechanical, electric or electronic device so that it functions optimally
to tune make more precise, intense, or effective
to voice tune the pipes of an organ
to tune in adjust the frequency of a receiver to match with that of a specific television or radio station
to set, arm, activate of a trap or similar, to make ready for action
(~ tuli) to light light a fire
to jury-rig create a makeshift, ad hoc solution from resources at hand
(mathematics) to span

Suffix from Finnish vireä.

Finnish

vireä