How would Tolkien have derived a 'Desiderative'* (a term from Sanskrit verb morphology) equivalent of a non-root verb like anta-? Hmm.

* The only (?) example of a similar thing being MEN > MEYN > mína- — yet compare also the forms maita and noiri- (a plural stem, connected with the root NDOR?).

+ܤܡܝ ܦܠܕܢܝܘܤ that's an interesting question. At first I did not see the connection you had in mind, but then it dawned on me that you'd been thinking of a meaning like 'desiring to give => offer, propose'. An intriguing idea.
Desideratives don't exist in Hungarian (we express it with a conditional/optative or with auxiliaries) so that's a novel concept for me. I can see how maita 'hungry' can be regarded as one, but I don't get the connection with noiri ('tombs'?)

+Tamas Ferencz Keeping in mind the meanings of NDOR ("land; hard, firm; dwell, stay, rest, abide”), I'd say it's not a big leap to think that in light of the existence of mína-, an i-infixional noun-derivation from NDOR would similarly imply an inclination/inevitability/development into those things, and hence be a fitting term for "grave(s)".

+ܤܡܝ ܦܠܕܢܝܘܤ I see, thanks for the explanation.
As for the original question, if the root TEN were still valid for the meaning 'reach, arrive at' one could coin the verb *tína- 'offer, suggest' modeled on mína-.