gtum LZ, CD, TC. give as the present of 'thum.
Present: gtum LZ, ND. Past: gtum LZ, ND. Future: gtum LZ. Imperative: gtum LZ. - ND. Involuntary: ND. Characteristic Example: rgyud dang rang bzhin sogs LZ. Meaning: To be fierce, harsh, stern (Goldstein 2001).
see 'thum